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  1. Planetary exploration rovers have required a high traveling performance to overcome obstacles such as loose soil and rocks. Push-pull locomotion rovers is a unique scheme, like an inchworm, and it has high tra...

    Authors: Daisuke Fujiwara, Naoki Tsujikawa, Tetsuya Oshima and Kojiro Iizuka

    Citation: ROBOMECH Journal 2020 7:38

    Content type: Research Article

    Published on:

  2. This paper presents an extended Kalman filter for pose estimation using noise covariance matrices based on sensor output. Compact and lightweight nine-axis motion sensors are used for motion analysis in widely...

    Authors: Ayuko Saito, Satoru Kizawa, Yoshikazu Kobayashi and Kazuto Miyawaki

    Citation: ROBOMECH Journal 2020 7:36

    Content type: Research Article

    Published on:

  3. This paper proposes a locomotion approach of leg-wheel robot utilizing passive wheel attached to the foot of bipedal robot. The key feature of this approach is bipedal mobility without swing leg. This mobility...

    Authors: Kohei Kimura, Noriaki Imaoka, Shintaro Noda, Yohei Kakiuchi, Kei Okada and Masayuki Inaba

    Citation: ROBOMECH Journal 2020 7:35

    Content type: Research Article

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  4. To obtain the necessary information on fuel debris and water leakages during the decommissioning task of the Fukushima Daiichi Nuclear Power Plant, an ultrasonic-based method was proposed for future internal i...

    Authors: Zhenyu Wang, Gen Endo, Masashi Takahashi, Hiroyuki Nabae, Koichi Suzumori, Nobuyoshi Tsuzuki, Hideharu Takahashi, Kazushi Kimoto, Tomonori Ihara and Hiroshige Kikura

    Citation: ROBOMECH Journal 2020 7:34

    Content type: Research Article

    Published on:

  5. This paper describes development of a mobile robot using semicircular wheels on uneven terrain. It performs the crawl gait on flat ground without changing potential energy and the butterfly gait to climb over ...

    Authors: Kanta Yamamoto and Takeshi Aoki

    Citation: ROBOMECH Journal 2020 7:32

    Content type: Research Article

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  6. This paper proposes a novel, simple and high-efficient submerged structural stabilization system for a self-stabilizing buoy that provides a stable platform for oceanographic and meteorological sensors. The pr...

    Authors: Mina Malek Azari, Jose Victorio Salazar Luces and Yasuhisa Hirata

    Citation: ROBOMECH Journal 2020 7:30

    Content type: Research Article

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  7. A new approach to the active fault diagnosis (AFD) for input redundant plants is presented in this paper. A test signal which helps the diagnosis is injected to the plant in addition to nominal control input i...

    Authors: Natsuki Kawaguchi, Nozomu Araki, Takao Sato, Masaharu Kuroda and Toshihiko Asami

    Citation: ROBOMECH Journal 2020 7:28

    Content type: Research Article

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  8. It is a problem that the poor gait function of many elderly people affects their activities of daily living (ADL), and deteriorates their quality of life (QoL). To enhance rehabilitation of the gait function, ...

    Authors: Katsushi Ogawa, Kenji Uegami, Itaru Chiba, Kyono Uno, Hiroki Aoyama, Kazuo Yonenobu and Seonghee Jeong

    Citation: ROBOMECH Journal 2020 7:27

    Content type: Research Article

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  9. Teleoperated robots are expected to perform tasks in extreme environments such as disaster sites. However, only few teleoperated robots are used for this purpose because their usability is poor compared to hum...

    Authors: Yoshihiro Tamura, Hisanori Amano and Jun Ota

    Citation: ROBOMECH Journal 2020 7:26

    Content type: Research Article

    Published on:

  10. In this paper, a navigation and environment mapping method is presented for small exploration robots that use hopping motion. While previous research about hopping rovers mostly focuses on mobility and mechani...

    Authors: Gabor Kovacs, Yasuharu Kunii, Takao Maeda and Hideki Hashimoto

    Citation: ROBOMECH Journal 2020 7:25

    Content type: Research Article

    Published on:

  11. Large-sized gantry-type linear motor sliders are widely used in industry (e.g. in liquid crystal panel production equipment). An appropriate control model is important for deriving control methods to improve c...

    Authors: Tetsuya Ojiro, Toshiyuki Tachibana, Hideki Honda, So Watanabe, Hiroshi Hamamatsu and Kazuhiro Tsuruta

    Citation: ROBOMECH Journal 2020 7:24

    Content type: Research Article

    Published on:

  12. The wheelchair is the major means of transport for elderly and physically disabled people in their daily lives. However it cannot overcome architectural barriers such as curbs and stairs. In this study, we dev...

    Authors: Yuya Onozuka, Nobuyasu Tomokuni, Genki Murata and Motoki Shino

    Citation: ROBOMECH Journal 2020 7:23

    Content type: Research Article

    Published on:

  13. This paper proposes a stair-climbing gait for a four-wheeled vehicle. The idea and methodology of climbing stairs are described, and the results of experiments are shown. Crawler-type vehicles and vehicles wit...

    Authors: Shuro Nakajima

    Citation: ROBOMECH Journal 2020 7:20

    Content type: Research Article

    Published on:

  14. One of the main challenges for the elderly is insufficient lower limb strength during sit-to-stand movement, which may be improved by supporting the joint externally. Existing lower extremity exoskeletons use ...

    Authors: Sarin Kittisares, Hiroyuki Nabae, Gen Endo, Koichi Suzumori and Ryo Sakurai

    Citation: ROBOMECH Journal 2020 7:16

    Content type: Research Article

    Published on:

  15. In robot teleoperation, a lack of depth information often results in collisions between the robots and obstacles in its path or surroundings. To address this issue, free viewpoint images can greatly benefit th...

    Authors: Ren Komatsu, Hiromitsu Fujii, Yusuke Tamura, Atsushi Yamashita and Hajime Asama

    Citation: ROBOMECH Journal 2020 7:15

    Content type: Research Article

    Published on:

  16. As the geriatric population expands, caregivers require more accurate training to handle and care for the elderly. However, students lack methods for acquiring the necessary skill and experience, as well as su...

    Authors: Miran Lee, Ko Ameyama, Hirotake Yamazoe and Joo-Ho Lee

    Citation: ROBOMECH Journal 2020 7:12

    Content type: Research Article

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  17. Stretching is a major treatment for restoring the ankle range of motion while decreasing the ankle stiffness. An automatic stretching machine can provide long-term continual stretching at home. However, no com...

    Authors: Yuma Shiraishi, Shogo Okamoto, Naomi Yamada, Koki Inoue, Yasuhiro Akiyama and Yoji Yamada

    Citation: ROBOMECH Journal 2020 7:10

    Content type: Research Article

    Published on:

  18. Artificial intelligence (AI)-based robots have become popular in various fields, thereby increasing the demand for care robots. Such care robots recognize or estimate factors such as human states and then perf...

    Authors: Mizuki Takeda, Yasuhisa Hirata, Yueh-Hsuan Weng, Takahiro Katayama, Yasuhide Mizuta and Atsushi Koujina

    Citation: ROBOMECH Journal 2020 7:8

    Content type: Research Article

    Published on:

  19. This paper examines the feasibility of automated alignment in sagittal direction in MR-TRUS fusion biopsy of the prostate by comparing the prostate contour in axial images between different modalities. In the ...

    Authors: Riki Igarasihi, Norihiro Koizumi, Yu Nishiyama, Kyohei Tomita, Yuka Shigenari and Sunao Shoji

    Citation: ROBOMECH Journal 2020 7:4

    Content type: Research Article

    Published on:

  20. This paper describes a vacuum suction-type end effector for depalletizing robots in distribution centers. The developed end effector has multiple suction pad units to which a bellows pneumatic actuator is appl...

    Authors: Junya Tanaka, Akihito Ogawa, Hideichi Nakamoto, Takafumi Sonoura and Haruna Eto

    Citation: ROBOMECH Journal 2020 7:2

    Content type: Research Article

    Published on:

  21. One of the main sequelae of stroke is dificulty walking, which is characterized by a decreased gait velocity and asymmetrical walking patterns. The purpose of this research was initially focused on developing ...

    Authors: Kazuhiro Yasuda, Yuki Hayashi, Anna Tawara and Hiroyasu Iwata

    Citation: ROBOMECH Journal 2020 7:1

    Content type: Development Report

    Published on:

  22. A worm gear has the advantages of a large reduction ratio and non-backdrivability. Because of this non-backdrivability, it can maintain a joint angle without energy consumption. Today, many robots have large w...

    Authors: Toshio Takayama and Naoto Hisamatsu

    Citation: ROBOMECH Journal 2019 6:21

    Content type: Research Article

    Published on:

  23. Spatial change detection is a fundamental technique for finding the differences between two or more pieces of geometrical information. This technique is critical in some robotic applications, such as search an...

    Authors: Ukyo Katsura, Kohei Matsumoto, Akihiro Kawamura, Tomohide Ishigami, Tsukasa Okada and Ryo Kurazume

    Citation: ROBOMECH Journal 2019 6:20

    Content type: Research Article

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  24. To achieve quantitative palpation in vivo, we developed a catheter-type tactile sensor composed of a polyvinylidene fluoride film for minimally invasive surgery. We evaluated the fundamental performance of the...

    Authors: Kazuto Takashima, Keisuke Ota, Masaki Yamamoto, Makoto Takenaka, Satoshi Horie and Kenji Ishida

    Citation: ROBOMECH Journal 2019 6:19

    Content type: Research Article

    Published on:

  25. In supermarkets or grocery, a shopping cart is a necessary tool for shopping. In this paper, we have developed an intelligent shopping support robot that can carry a shopping cart while following its owners an...

    Authors: Md Matiqul Islam, Antony Lam, Hisato Fukuda, Yoshinori Kobayashi and Yoshinori Kuno

    Citation: ROBOMECH Journal 2019 6:18

    Content type: Research Article

    Published on:

  26. In this paper, toward robotic gait assistance, we investigate the feasibility of a cane-type assistive mobile robot accompanying the user autonomously through a clinical pilot experiment. As widely known, gait...

    Authors: Shunki Itadera, Tadayoshi Aoyama, Yasuhisa Hasegawa, Keita Aimoto, Kenji Kato and Izumi Kondo

    Citation: ROBOMECH Journal 2019 6:17

    Content type: Research Article

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  27. In this study, the novel approach of real-time video stabilization system using a high-frame-rate (HFR) jitter sensing device is demonstrated to realize the computationally efficient technique of digital video...

    Authors: Sushil Raut, Kohei Shimasaki, Sanjay Singh, Takeshi Takaki and Idaku Ishii

    Citation: ROBOMECH Journal 2019 6:16

    Content type: Research Article

    Published on:

  28. Brain damage due to stroke often leaves survivors with lateral functional motor deficits. Bimanual rehabilitation of the paretic arm is an active field of research aimed at restoring normal functionality by ma...

    Authors: Matti Itkonen, Álvaro Costa, Hiroshi Yamasaki, Shotaro Okajima, Fady Alnajjar, Takatsune Kumada and Shingo Shimoda

    Citation: ROBOMECH Journal 2019 6:14

    Content type: Research Article

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  29. Automation and labor saving in agriculture have been required recently. However, mechanization and robots for growing fruits have not been advanced. This study proposes a method of detecting fruits and automat...

    Authors: Yuki Onishi, Takeshi Yoshida, Hiroki Kurita, Takanori Fukao, Hiromu Arihara and Ayako Iwai

    Citation: ROBOMECH Journal 2019 6:13

    Content type: Research Article

    Published on:

  30. This paper presents fabrication and actuation methods for a soft microrobot with a hybrid structure composed of soft microactuators and a rigid supporting body. This hybrid structure enables actuation of the m...

    Authors: Tomoki Watanabe, Yoshiyuki Yokoyama and Takeshi Hayakawa

    Citation: ROBOMECH Journal 2019 6:11

    Content type: Research Article

    Published on:

  31. Breast cancer diagnosis has been mostly accomplished through imaging. These methods have great advantages in being able to detect the presence and location of breast cancer. However, it is difficult to disting...

    Authors: Satoshi Miura, Hidekazu Ishiuchi, Yuta Shintaku, Victor Parque, Ayako Torisaka and Tomoyuki Miyashita

    Citation: ROBOMECH Journal 2019 6:10

    Content type: Research Article

    Published on:

  32. One of the recommended post-stroke gait rehabilitation treatments is the use of an ankle–foot orthosis. In clinical practice, it is important to adjust the torque of the ankle–foot orthosis assistance to suit ...

    Authors: Masataka Yamamoto, Koji Shimatani, Masaki Hasegawa and Yuichi Kurita

    Citation: ROBOMECH Journal 2019 6:9

    Content type: Research Article

    Published on: