MI

Masayoshi Ichikawa

TC Toyoda Gosei Co.: 21 patents #77 of 2,296Top 4%
AD Advantest: 11 patents #75 of 1,193Top 7%
DL Denka Company Limited: 8 patents #19 of 434Top 5%
DK Denki Kagaku Kogyo: 4 patents #65 of 655Top 10%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
SC Sumitomo Chemical: 2 patents #1,792 of 4,033Top 45%
TL Toyota Central R&D Labs: 2 patents #528 of 1,657Top 35%
KC Kansai Paint Co.: 1 patents #432 of 822Top 55%
KA Kao: 1 patents #1,961 of 3,221Top 65%
JR Japan Synthetic Rubber: 1 patents #256 of 558Top 50%
📍 Oomuta, JP: #1 of 1 inventorsTop 100%
Overall (All Time): #65,418 of 4,157,543Top 2%
45
Patents All Time

Issued Patents All Time

Showing 26–45 of 45 patents

Patent #TitleCo-InventorsDate
6110546 Automobile weather strip and method for making the same Hidenobu Honda, Katsumi Nakashima, Hironobu Shigematsu, Hiroshi Ooyama, Takashi Sakakibara 2000-08-29
6071582 Rubber layer structure Koichi Tangiku, Atsushi Suzuki 2000-06-06
6037062 Layered molding Daisuke Tsutsumi, Atsushi Suzuki, Katsumasa Takeuchi 2000-03-14
5936023 Method of manufacturing composite material of clay mineral and rubber Makoto Kato, Azusa Tsukigase, Arimitsu Usuki, Akane Okada, Katsumasa Takeuchi +2 more 1999-08-10
5922811 Ethylene propylene rubber blend and hose formulated from the same Atsushi Suzuki, Kiyomitsu Terashima 1999-07-13
5917957 Method of and apparatus for processing an image 1999-06-29
5881164 Image data processing method and image data processing apparatus 1999-03-09
5798158 Layered molding including fluoroplastic layer crosslinked with rubber layer Masaki Koike, Atsushi Suzuki, Daisuke Tsutsumi 1998-08-25
5506322 Acrylic rubber composition and rubber hose obtained using the same Atsushi Suzuki 1996-04-09
5418203 Fuel absorbent and a process for making the fuel absorbent Shinji Hasegawa, Hiroshi Ito, Takashi Ohta, Norio Sato, Akane Okada 1995-05-23
5356681 Multi-layer rubber hose and method for producing the same Tomoaki Okita 1994-10-18
5279874 Ethylene-propylene rubber compositions Kiyomitsu Terashima 1994-01-18
5269820 Method for surface treatment of plastic material and apparatus used therefor Yasuhiro Fujii, Osamu Iwase, Kazushige Miyake, Hideo Terasawa 1993-12-14
5214103 Ethylene-propylene type rubber composition Akira Imao 1993-05-25
5100734 Rubber laminate Toshio Miyabayashi, Shinichiro Zen, Hideyuki Fujiwara 1992-03-31
4904736 Acrylic rubber composition Hiroaki Shimizu, Yasushi Abe, Tomoaki Okita 1990-02-27
4645788 Chloroprene rubber composition Tadaoki Okumoto, Rikizo Nakata, Masaaki Tsuchihashi, Koichi Sakai 1987-02-24
4606952 Rubber laminate Masatoshi Sugimoto, Kiyomitsu Terashima, Hiroji Enyo, Shinichiro Iwanaga, Eitaro Okuya 1986-08-19
4491621 Diaphragm Tadaoki Okumoto, Masatoshi Sugimoto, Noriyuki Horiuchi, Seiichi Sahara, Tetsuo Yamada +2 more 1985-01-01
4486480 Rubber hose comprising a liquid nitrile-butadiene copolymer incorporated into a partially hydrogenated unsaturated acrylonitrile-butadiene copolymer Tadaoki Okumoto, Masatoshi Sugimoto, Takashi Kawazoe, Seiichi Sahara, Tetsuo Yamada +2 more 1984-12-04