Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D704381 | Working glove | Nobuyoshi Koga | 2014-05-06 |
| 8091522 | Variable valve driving device | Akihiko Minato, Terukazu Nishimura, Takeshi Tokumaru | 2012-01-10 |
| 6745731 | Valve driving device of an internal combustion engine | Akihiko Minato, Yoshihiro Arakawa | 2004-06-08 |
| 6017588 | Method for reinforcing structures | Takeshi Watanabe, Hiroaki Katano, Joji Shibata, Mitsuhiro Yada, Takeshi Nemoto | 2000-01-25 |
| 5493647 | Digital signal recording apparatus and a digital signal reproducing apparatus | Syuji Miyasaka, Kazue Kita, Michio Matsumoto, Masayuki Misaki, Takeshi Norimatsu +1 more | 1996-02-20 |
| 5073946 | Thin speaker having an enclosure with an open portion and a closed portion | Katsuaki Satoh, Kazue Sato, Kousaku Murata, Shuji Saiki, Satoshi Takayama +6 more | 1991-12-17 |
| 5046933 | Vane pump with pressure leaking groove to reduce pulsations | Kyosuke Haga, Makoto Kawahara, Tatsuya Yamamoto | 1991-09-10 |
| 5025474 | Speaker system with image projection screen | Kazue Sato, Hiroyuki Takewa, Akira Kurozuka, Tadashi Tamura, Katsuji Hattori +6 more | 1991-06-18 |
| 4925731 | Heat-sensitive transfer material | Koji Hanada, Masashi Sawamura, Takeshi Yoshikawa, Hiroyuki Nihashi | 1990-05-15 |
| 4877681 | Heat-sensitive transfer material | Koji Hanada, Masashi Sawamura, Takeshi Yoshikawa, Hiroyuki Nihashi | 1989-10-31 |
| 4823908 | Directional loudspeaker system | Mikio Iwasa, Youichi Kimura, Akira Nakamura | 1989-04-25 |
| 4803242 | Diaphragm for loudspeakers | Kousaku Murata, Satoshi Takayama, Hiroyuki Takewa, Shuji Saiki | 1989-02-07 |
| 4799514 | Rotary servovalve for power-assisted steering system | Katsuhisa Mori | 1989-01-24 |
| 4798050 | Control system for hydraulic tandem pump in motor vehicle | Keiichi Nakamura, Yoshiharu Inaguma, Harunori Shiratori | 1989-01-17 |
| 4786341 | Method for manufacturing concrete structure | Katsuro Kobatake, Hideo Katsumata, Kensuke Yagi, Tatsuo Ando | 1988-11-22 |
| 4708903 | Heat-sensitive transfer sheet | Tetsuro Yoshitomi, Koji Hanada, Mashato Ohashi, Michichika Hikosaka | 1987-11-24 |
| 4610614 | Vane pump | Kyosuke Haga, Toshifumi Sakai | 1986-09-09 |
| 4592977 | Lithographic printing plate | Tsutomu Naganuma, Sigeru Hirayama, Hiroji Kumagai, Manabu Sawada, Isao Kumano | 1986-06-03 |
| 4577660 | Rotary servovalve | Kyosuke Haga | 1986-03-25 |
| 4499136 | Anti-corrosive covering sheet | Yukio Nakamura | 1985-02-12 |
| 4460016 | Rotary servovalve | Kyosuke Haga | 1984-07-17 |
| 4452274 | Rotary valve for power steering system | Kyosuke Haga | 1984-06-05 |
| 4443528 | Photoconductive materials comprising nitro or cyano substituted phthalocyanine compounds for electrophotography | Shinichi Tamura, Toshio Seta, Mititika Hikosaka | 1984-04-17 |
| 4426556 | Electrodynamic loudspeaker | Shuji Saiki, Katuaki Sato, Kazue Sato, Seiichi Ishikawa, Hideaki Inoue | 1984-01-17 |
| 4380087 | X-ray film cassette | — | 1983-04-12 |