Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10862154 | Fuel cell stack | Hidekazu Hattori | 2020-12-08 |
| 8316819 | Control of spark ignited internal combustion engine | Masahisa Yamakawa, Naohiro Yamaguchi, Keiji Araki | 2012-11-27 |
| 7869929 | Internal combustion engine having variable valve lift mechanism | — | 2011-01-11 |
| 7739991 | Adjustable valve drive device of engine | Toshimasa Kotani, Hirokazu Matsuura | 2010-06-22 |
| 7444975 | Control of engine intake system | Shinji Kishi, Masashi Marubara, Toshihide Yamamoto | 2008-11-04 |
| 6908881 | Visible radiation type photocatalyst and production method thereof | — | 2005-06-21 |
| D374030 | Electronic copying machine with facsimile | Toshio Horiki, Tetsuya Imamura, Chikako Tada | 1996-09-24 |
| D365806 | Portable laptop computer | Takayuki Hayami, Masahiko Moriwaki | 1996-01-02 |
| D358584 | Portable laptop computer | Kyosuke Kawazoe, Masahiko Moriwaki | 1995-05-23 |
| D354523 | Video game machine | Shigeo Hiraoka, Takayuki Hayami | 1995-01-17 |
| D353133 | Portable laptop computer | Fumihiko Yamada, Masahiko Moriwaki | 1994-12-06 |
| D348053 | Portable laptop computer | Tetsuya Imamura, Masahiko Moriwaki, Masaru Tochishita | 1994-06-21 |
| D341577 | Portable laptop computer | Tetsuya Imamura, Masahiko Moriwaki, Masaru Tochishita | 1993-11-23 |
| D341576 | Portable laptop computer | Tetsuya Imamura, Masahiko Moriwaki | 1993-11-23 |
| D341579 | Portable laptop computer | Tetsuya Imamura, Masahiko Moriwaki, Tadashi Aikawa | 1993-11-23 |
| D341355 | Portable laptop computer | Tetsuya Imamura, Yashio Kishi | 1993-11-16 |
| D339370 | Copying machine | Eiji Fujita, Akishige Sai, Masahiko Moriwaki, Shigeo Hiraoka, Kunio Yamada +1 more | 1993-09-14 |
| D332444 | Portable laptop computer | Tetsuya Imamura, Yashio Kishi | 1993-01-12 |
| D329455 | Document feeder for a copying machine | Akishige Sai, Shigeo Hiraoka, Kunio Yamada, Eiji Fujita, Masahiko Moriwaki | 1992-09-15 |
| D329454 | Sorter for a copying machine | Akishige Sai, Shigeo Hiraoka, Kunio Yamada, Eiji Fujita, Masahiko Moriwaki | 1992-09-15 |
| D328095 | Copying machine | Akishige Sai, Shigeo Hiraoka, Kunio Yamada, Eiji Fujita, Masahiko Moriwaki | 1992-07-21 |
| 4909316 | Dual-tube heat pipe type heat exchanger | Mitsuru Kamei, Takao Sakai, Motoharu Yatsuhashi, Ryuichi Okiai, Masataka Mochizuki | 1990-03-20 |