Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5935331 | Apparatus and method for forming films | Hiroyuki Naka, Hiroshi Ogura, Naoko Matsuda | 1999-08-10 |
| 5678410 | Combined system of fuel cell and air-conditioning apparatus | Nobuo Fujita, Hiroyuki Mitsui, Hiroshi Aoki, Hidehito Kubo, Keiji Toh | 1997-10-21 |
| 5278583 | Ink-jet recording apparatus | Gen Oda, Koichi Saito, Shuko Kanematsu | 1994-01-11 |
| 5228089 | Hearing aid | Kiyofumi Inanaga, Hiroyuki Sogawa, Yasuhiro Iida | 1993-07-13 |
| 5121142 | Reciprocating color printing system with specified positioning of printing heads relative to a printing sheet | Toshiyuki Iwazawa | 1992-06-09 |
| 5022486 | Sound reproducing apparatus | Kiyofumi Inanaga, Hiroyuki Sogawa, Yasuhiro Iida | 1991-06-11 |
| 4975718 | Ink jet recording apparatus | Kenji Akami, Gen Oda, Toshiyuki Iwasawa | 1990-12-04 |
| 4908635 | Ink jet recording apparatus with density control function | Toshiyuki Iwasawa | 1990-03-13 |
| 4829325 | Ink jet recording apparatus with an electrode disposed at writing paper side | Toshiyuki Iwasawa | 1989-05-09 |
| 4825102 | MOS FET drive circuit providing protection against transient voltage breakdown | Toshiyuki Iwasawa | 1989-04-25 |
| 4801954 | Ink jet printer | Kenji Akami, Gen Oda, Tamotsu Kojima, Hiroshi Naito | 1989-01-31 |
| 4801955 | Ink jet printer | Kenji Akami, Gen Oda, Tamotsu Kojima, Hiroshi Naito | 1989-01-31 |
| 4769658 | Ink jet recording apparatus with pressure adjustable mechanisms for discharging a constant ink amount | Gen Oda, Kenji Akami | 1988-09-06 |
| 4736212 | Ink jet recording apparatus | Gen Oda, Kenji Akami | 1988-04-05 |
| 4728392 | Ink jet printer and method for fabricating a nozzle member | Kenji Akami, Gen Oda, Tamotsu Kojima, Hiroshi Naito | 1988-03-01 |
| 4684957 | Method for operation of an ink jet printing head | Toshiyuki Iwasawa | 1987-08-04 |
| 4665435 | Method and circuit arrangement for producing color picture signals for color reproduction | — | 1987-05-12 |
| 4555717 | Ink jet printing head utilizing pressure and potential gradients | Hiroshi Naito | 1985-11-26 |
| 4527175 | Ink supply system for nonimpact printers | Tamotsu Kojima, Gen Oda | 1985-07-02 |
| 4422086 | Device for feeding constant pressure fluid | Gen Oda, Kenji Akami, Hiroshi Naito | 1983-12-20 |
| 4403228 | Ink jet printing head having a plurality of nozzles | Hiroshi Naito | 1983-09-06 |
| 4403234 | Ink jet printing head utilizing pressure and potential gradients | Hiroshi Naito | 1983-09-06 |
| 4358781 | Ink jet writing head with spacer in capillary chamber | Kiyoshi Yamamori, Akira Mizoguchi | 1982-11-09 |
| 4301460 | Ink ejection apparatus | Kiyoshi Yamamori, Akira Mizoguchi | 1981-11-17 |