Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6190574 | Phosphorus-comprising lubricating oil composition | Shoji Nakagawa, Yuichiro Kobayashi, Toshiya Hagihara, Koji Taira | 2001-02-20 |
| 6096692 | Synthetic lubricating oil | Toshiya Hagihara, Shoji Nakagawa, Yuichiro Kobayashi, Koji Taira, Akimitsu Sakai | 2000-08-01 |
| 5922239 | Polyol ether derivatives and production methods therefor | Shoji Nakagawa, Hiroki Sawada, Toshiya Hagihara | 1999-07-13 |
| 5869702 | Polyol ether derivatives and production methods therefor | Shoji Nakagawa, Hiroki Sawada, Toshiya Hagihara | 1999-02-09 |
| 5720895 | Polyol ether derivatives and production methods therefor | Shoji Nakagawa, Hiroki Sawada, Toshiya Hagihara | 1998-02-24 |
| 5575944 | Acetal-containing working fluid composition for refrigerating machine | Hiroki Sawada | 1996-11-19 |
| 5352554 | Organic silicon compound, method of its production, and photoreceptor for electrophotography incorporating it | Masayuki Mishima, Harumasa Yamasaki, Takashi Matsuse, Tadashi Sakuma | 1994-10-04 |
| 5290963 | Organic silicon compound, method of its production, and photoreceptor for electrophotography incorporating it | Masayuki Mishima, Harumasa Yamasaki, Takashi Matsuse, Tadashi Sakuma | 1994-03-01 |
| 5187310 | Organic silicon compound, method of its production, and photoreceptor for electrophotography incorporating it | Masayuki Mishima, Harumasa Yamasaki, Takashi Matsuse, Tadashi Sakuma | 1993-02-16 |
| 5032479 | Ion transport photoreceptor for electrophotography | Masayuki Mishima, Harumasa Yamasaki, Takashi Matsuse, Tadashi Sakuma | 1991-07-16 |