Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7454395 | Information processing apparatus and program for displaying tree diagram | — | 2008-11-18 |
| 7038273 | Semiconductor device | — | 2006-05-02 |
| 6936893 | Power semiconductor device | Masahiro Tanaka, Shinichi Umekawa, Masakazu Yamaguchi | 2005-08-30 |
| 6818940 | Insulated gate bipolar transistor having trench gates of rectangular upper surfaces with different widths | — | 2004-11-16 |
| 6798025 | Insulated gate bipolar transistor | — | 2004-09-28 |
| 6777783 | Insulated gate bipolar transistor | — | 2004-08-17 |
| 5485022 | High switching speed IGBT | — | 1996-01-16 |
| 5350934 | Conductivity modulation type insulated gate field effect transistor | — | 1994-09-27 |
| 5347158 | Semiconductor device having a particular terminal arrangement | Tetsujiro Tsunoda | 1994-09-13 |
| 4801386 | Process of using a porous water-treating material | Shuichi Sugimori, Tomihiko Kawamura, Shintaro Nakano, deceased, Sumito Saiki, Hideaki Habara | 1989-01-31 |
| 4690764 | Aerator and aerobic biological treatment process using same | Munehiro Okumura, Takao Nomura, Shojiro Kido, Shinichi Ishii, Hideki Hattori | 1987-09-01 |
| 4625221 | Apparatus for ejecting droplets of ink | Tsuneo Mizuno, Noboru Takada, Michio Shimura, Tohru Satoh | 1986-11-25 |
| 4528575 | Ink jet printing head | Tsuneo Mizuno, Noboru Takada | 1985-07-09 |
| 4491851 | Method and circuit for driving an ink jet printer | Tsuneo Mizuno, Shigeru Yoshikawa | 1985-01-01 |
| 4410234 | Timing pulse generator for scanning apparatus | Tomohisa Mikami, Fumitaka Abe, Fumio Sakurai | 1983-10-18 |
| 4398816 | Electrophotographic copying printer | Junzo Nakajima, Masatoshi Kimura | 1983-08-16 |
| 4251825 | Non-impact printer using a modulated light beam | Tomohisa Mikami, Fumitaka Abe | 1981-02-17 |