Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7690087 | Button | Akira Morishita, Hiroko Mikado, Yasuharu Yoshimura | 2010-04-06 |
| 7644476 | Cap for button, fixing member and button | — | 2010-01-12 |
| 7251865 | Button | Daisuke Hayashi | 2007-08-07 |
| 6581250 | String fastening device and cloth to which the device is attached | Hideyuki Matsushima, Hisashi Yoneshima, Koji Yamagishi | 2003-06-24 |
| 6328899 | Method and apparatus for treating wastewater containing organic sulfur compounds | Hiroyuki Chifuku, Takahiro Yano, Toshiaki Muratani | 2001-12-11 |
| 5906678 | Hot melt colored ink | Jitsunori Fujiyama, Masakazu Kimura, Nobuhiko Naito | 1999-05-25 |
| 5529693 | Method and apparatus for treating water containing organic sulfur compounds | Takahiro Yano, Toshiaki Muratani, Hiroyuki Chifuku | 1996-06-25 |
| 5435043 | Female member of snap button and press tool for clinching the same to washer | Kazuyoshi Ito, Hirokazu Watanabe | 1995-07-25 |
| 5375302 | Snap button assembly | — | 1994-12-27 |
| 4716512 | Multiple step-up rectifier circuit | Akira Nakajima | 1987-12-29 |
| 4675795 | Step-up rectifier circuit | Akira Nakajima | 1987-06-23 |
| 4667280 | Voltage multiplying rectifier | Akira Nakajima | 1987-05-19 |
| 4660138 | Multiple output multiple step-up rectifier circuit | Akira Nakajima | 1987-04-21 |
| 4651268 | Multiple step-up rectifier circuit | Akira Nakajima | 1987-03-17 |
| 4584637 | Multiple step-up rectifier circuit | Akira Nakajima | 1986-04-22 |
| 4437147 | Rectifier circuit | Akira Nakajima | 1984-03-13 |
| 4417153 | High frequency switching circuit | Toshihiro Onodera, Youichi Masuda, Akira Nakajima, Seiji Kajiwara, Shoichi Higo | 1983-11-22 |
| 4401902 | High frequency switching circuit | Toshihiro Onodera, Youichi Masuda, Akira Nakajima, Seiji Kajiwara, Shoichi Higo | 1983-08-30 |
| 4399376 | High frequency switching circuit | Toshihiro Onodera, Koichiro Inomata, Michio Hasegawa, Seiji Kajiwara, Shoichi Higo | 1983-08-16 |
| 4298894 | Image pick-up tube | Soichiro Abe, Noboru Nakamura, Hiroyuki Suzuki | 1981-11-03 |
| 4221992 | Scanning area rotation device for an image pickup tube | Joji Ueda, Hiroshi Hisamatsu | 1980-09-09 |