Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452219 | Insulated gate bipolar transistor and method of fabricating the same | Naohito Kato, Haruo Kawakita, Naoto Okabe | 2002-09-17 |
| 5729893 | Process for producing a multilayer ceramic circuit substrate | Nozomi Tanifuji, Akihiko Naito, Koji Sawada, Tohru Nomura, Takashi Nagasaka | 1998-03-24 |
| 5709927 | Thick film circuit board | Tohru Nomura, Akihiko Naito, Takamasa Okumura | 1998-01-20 |
| 5627344 | Multilayer ceramic circuit substrate, process for producing the same, and electrically conductive material for use in multilayer ceramic circuit substrate | Nozomi Tanifuji, Akihiko Naito, Koji Sawada, Tohru Nomura, Takashi Nagasaka | 1997-05-06 |
| 5343014 | Method of welding metals of different kind by laser | Akihiko Ogino, Shuuzi Sakou, Shinzi Shibata | 1994-08-30 |
| 5156903 | Multilayer ceramic substrate and manufacture thereof | Takamasa Okumura, Kohmei Kawaguchi, Masataka Aoki, Takashi Nagasaka, Tohru Nomura | 1992-10-20 |
| 4994880 | Semiconductor device constituting bipolar transistor | Naohito Kato, Tomoatsu Makino, Kasuhiro Yamada, Masami Yamaoka, Takeshi Matsui +3 more | 1991-02-19 |
| 4658788 | Ignition system for internal combustion engines | Noboru Yamamoto, Katsuhisa Mase, Motoshi Kawai, Takeshi Matsui | 1987-04-21 |
| 4649888 | Ignition control apparatus for internal combustion engines | Motoshi Kawai, Noboru Yamamoto, Katuhisa Mase, Takeshi Matsui, Tomoatsu Mikino +2 more | 1987-03-17 |