Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7867956 | Urea-based lubricating grease composition | Toshihiro Asakura, Yasushi Kawamura, Hirofumi Kuwabara, Shigeyuki Sugimori, Keiji Tanaka | 2011-01-11 |
| 7536010 | Exchange system, button telephone set and exchange | — | 2009-05-19 |
| 6800595 | Grease composition with improved rust prevention and abrasion resistance properties | Noriaki Shinoda, Kouichi Nakazawa | 2004-10-05 |
| 6403538 | Grease composition for constant velocity joints | Tsutomu Yoshida, Ryuichi Masumori | 2002-06-11 |
| 6258760 | Grease composition for constant velocity joint | Tsutomu Yoshida, Takao Nishimura, Ryuichi Masumori, Keizo Nagasawa, Yukio Asahara | 2001-07-10 |
| 5624889 | Lubricating grease composition | Tomoo Munakata, Yasushi Kawamura, Kazunori Takase, Tetsuo Tsuchiya | 1997-04-29 |
| 5585336 | Grease composition for tripod type constant velocity joint | Fumio Goto, Yasushi Kawamura, Tomoo Munakata, Tetsuo Tsuchiya, Toshiharu Kato +2 more | 1996-12-17 |
| 5487837 | Grease composition for constant velocity joint | Tomoo Munakata, Fumio Goto, Tetsuo Tsuchiya | 1996-01-30 |
| 5449471 | Urea grease compostition | Yasushi Kawamura, Tetsuo Tsuchiya, Fumio Goto, Hideaki Tsuyuki, Kazuhiro Miyajima +3 more | 1995-09-12 |