Please login first
Kunio Shimada     University Educator/Researcher 
Timeline See timeline
Kunio Shimada published an article in February 2019.
Top co-authors See all
Norihiko Saga

64 shared publications

Kwansei Gakuin University

Osamu Mochizuki

30 shared publications

Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan;(O.M.);(Y.K.)

Yoshihiro Kubota

30 shared publications

Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan;(O.M.);(Y.K.)

Hideharu Takahashi

20 shared publications

Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan;(H.K.);(H.T.);(R.I.)

Hiroshige Kikura

17 shared publications

Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan;(H.K.);(H.T.);(R.I.)

12
Publications
51
Reads
11
Downloads
17
Citations
Publication Record
Distribution of Articles published per year 
(2008 - 2019)
Total number of journals
published in
 
4
 
Publications See all
Article 2 Reads 0 Citations Novel Adhesion Technique Using Metallic or Non-Metallic Hydrous Oxide of Metal Complexes Involving Magnetic Compound Flu... Kunio Shimada, Hiroshige Kikura, Hideharu Takahashi, Ryo Ike... Published: 08 February 2019
Sensors, doi: 10.3390/s19030689
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
As per sequential studies on new types of soft rubber for the artificial skin of robots, smart sensors, etc., we have proposed and investigated hybrid skin (H-Skin) and haptic sensors by using magnetic compound fluid (MCF), compounding natural rubber latex (NR-latex), and applying electric and magnetic fields. Through electrolytic polymerization, the MCF rubber is solidified. The MCF rubber has hybrid sensing functions and photovoltaic effects, and electric charge as battery. In case of the production of soft rubber sensors, however, the problem of adhesion between metal electrodes and rubber is very important. In the present study, we propose a novel adhesive technique for bonding the metal electrodes and MCF rubber by using metallic or non-metallic hydrous oxide, which is a metal complex, via electrolytic polymerization. The anionic radical hydrate reacts with the isoprene molecules of NR-latex or chloroprene rubber latex (CR-latex) such that they are cross-linked and the MCF rubber with the hydrate is solidified, which can be represented via a chemical reaction equation. By means of this adhesive technique, we presented five cases of sensors fabricated using metal electrodes and rubbers. This technique is applicable for novel cohesion between rubber and metal.
Article 2 Reads 2 Citations Elastic MCF Rubber with Photovoltaics and Sensing on Hybrid Skin (H-Skin) for Artificial Skin by Utilizing Natural Rubbe... Kunio Shimada Published: 06 June 2018
Sensors, doi: 10.3390/s18061848
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
In contrast to ordinary solid-state solar cells, a flexible, elastic, extensible and light-weight solar cell has the potential to be extremely useful in many new engineering applications, such as in the field of robotics. Therefore, we propose a new type of artificial skin for humanoid robots with hybrid functions, which we have termed hybrid skin (H-Skin). To realize the fabrication of such a solar cell, we have continued to utilize the principles of ordinary solid-state wet-type or dye-sensitized solar rubber as a follow-up study to the first report. In the first report, we dealt with both photovoltaic- and piezo-effects for dry-type magnetic compound fluid (MCF) rubber solar cells, which were generated because the polyisoprene, oleic acid of the magnetic fluid (MF), and water served as p- and n- semiconductors. In the present report, we deal with wet-type MCF rubber solar cells by using sensitized dyes and electrolytes. Photoreactions generated through the synthesis of these components were investigated by an experiment using irradiation with visible and ultraviolet light. In addition, magnetic clusters were formed by the aggregation of Fe3O4 in the MF and the metal particles created the hetero-junction structure of the semiconductors. In the MCF rubber solar cell, both photo- and piezo-electricity were generated using a physical model. The effects of tension and compression on their electrical properties were evaluated. Finally, we experimentally demonstrated the effect of the distance between the electrodes of the solar cell on photoelectricity and built-in electricity.
Article 2 Reads 1 Citation Elastic MCF Rubber with Photovoltaics and Sensing on Hybrid Skin (H-Skin) for Artificial Skin by Utilizing Natural Rubbe... Kunio Shimada Published: 06 June 2018
Sensors, doi: 10.3390/s18061853
DOI See at publisher website ABS Show/hide abstract
In the series of studies on new types of elastic and compressible artificial skins with hybrid sensing functions, photovoltaics, and battery, we have proposed a hybrid skin (H-Skin) by utilizing an electrolytically polymerized magnetic compound fluid (MCF) made of natural rubber latex (NR-latex). By using the experimental results in the first and second reports, we have clarified the feasibility of electric charge at irradiation, and that without illumination under compression and elongation. The former was explained in a wet-type MCF rubber solar cell by developing a tunneling theory together with an equivalent electric circuit model. The latter corresponds to the battery rather than to the solar cell. As for the MCF rubber battery, depending on the selected agent type, we can make the MCF rubber have higher electricity and lighter weight. Therefore, the MCF rubber has an electric charge and storage whether at irradiation or not.
Article 2 Reads 0 Citations Elastic MCF Rubber with Photovoltaics and Sensing on Hybrid Skin (H-Skin) for Artificial Skin by Utilizing Natural Rubbe... Kunio Shimada Published: 06 June 2018
Sensors,
PubMed View at PubMed ABS Show/hide abstract
In the series of studies on new types of elastic and compressible artificial skins with hybrid sensing functions, photovoltaics, and battery, we have proposed a hybrid skin (H-Skin) by utilizing an electrolytically polymerized magnetic compound fluid (MCF) made of natural rubber latex (NR-latex). By using the experimental results in the first and second reports, we have clarified the feasibility of electric charge at irradiation, and that without illumination under compression and elongation. The former was explained in a wet-type MCF rubber solar cell by developing a tunneling theory together with an equivalent electric circuit model. The latter corresponds to the battery rather than to the solar cell. As for the MCF rubber battery, depending on the selected agent type, we can make the MCF rubber have higher electricity and lighter weight. Therefore, the MCF rubber has an electric charge and storage whether at irradiation or not.
Article 1 Read 4 Citations Elastic MCF Rubber with Photovoltaics and Sensing for Use as Artificial or Hybrid Skin (H-Skin): 1st Report on Dry-Type ... Kunio Shimada Published: 05 June 2018
Sensors, doi: 10.3390/s18061841
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
Ordinary solar cells are very difficult to bend, squash by compression, or extend by tensile strength. However, if they were to possess elastic, flexible, and extensible properties, in addition to piezo-electricity and resistivity, they could be put to effective use as artificial skin installed over human-like robots or humanoids. Further, it could serve as a husk that generates electric power from solar energy and perceives any force or temperature changes. Therefore, we propose a new type of artificial skin, called hybrid skin (H-Skin), for a humanoid robot having hybrid functions. In this study, a novel elastic solar cell is developed from natural rubber that is electrolytically polymerized with a configuration of magnetic clusters of metal particles incorporated into the rubber, by applying a magnetic field. The material thus produced is named magnetic compound fluid rubber (MCF rubber) that is elastic, flexible, and extensible. The present report deals with a dry-type MCF rubber solar cell that uses photosensitized dye molecules. First, the photovoltaic mechanism in the material is investigated. Next, the changes in the photovoltaic properties of its molecules due to irradiation by visible light are measured under compression. The effect of the compression on its piezoelectric properties is investigated.
CONFERENCE-ARTICLE 29 Reads 0 Citations <span>Elastic Dry-Type Solar Cell Rubber with Photovoltaics and Piezoelectricity for Compressive Sensing</span> Kunio Shimada Published: 14 November 2017
Proceedings, doi: 10.3390/ecsa-4-04890
DOI See at publisher website ABS Show/hide abstract

Ordinary solar cell is too hard to bend or be squashed by compression, and to be extended by tensile strength. Because it is generally made of plastic polymer. However, if the one has elastic, flexible and extensible property as well as sensing of piezoelectricity, it is useful and effective on the artificial skin installed over a human-like robot as a husk which generates electric power in itself by solar and perceives any forces or temperature. Or other varied engineering applications will be feasible. In addition, such hybrid functions of both photovoltaics and piezoelectricity does not need any power supply or battery to be equipped. The solar cell with sensing developed in the present paper is novel in solar cell and sensor fields. For the realization of the elastic solar cell, it was made of natural rubber and electrolytically polymerized with configuration of magnetic clusters of metal particles by aiding a magnetic field, corresponding to the MCF rubber which the present author had developed as an elastic, flexible and extensible sensor made of natural rubber. The principle of photovoltaics and piezoelectricity was elucidated. The photo-voltage and current were measured under the photo-excitation based on the p- and n-type semiconductor resulted from the electrolytic polymerization of MCF rubber or from the doping, or on the dye. For clarifying piezoelectricity the compressive sensing was measured under compression.

Top