Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666287 | Quench-hardening testing method and apparatus | Masayuki Kobayashi | 1997-09-09 |
| 5658666 | Rolling bearing | Tsutomu Abe | 1997-08-19 |
| 5560787 | Rolling bearing for high-speed rotation at high temperatures | Masaaki Takagi, Manabu Ohori, Kenji Yamamura | 1996-10-01 |
| 5427457 | Rolling bearing | Yasuo Murakami, Nobuaki Mitamura, Shinichi Shirota, Shigeru Okita, Kazuo Sekino | 1995-06-27 |
| 5415705 | Rolling bearing | Hiroshi Narai, Shuji Wada | 1995-05-16 |
| 5137375 | Rolling bearing | Yasuo Murakami, Shinichi Shirota, Shigeru Okita | 1992-08-11 |
| 4904094 | Ball-and-roller bearing system | Yasuo Murakami, Youichi Matsumoto, Kenji Takei, Takaaki Shiratani, Soji Nishida | 1990-02-27 |
| 4875263 | Method of manufacturing a dynamic pressure type slide bearing | — | 1989-10-24 |
| 4871268 | Rolling bearing | Tomoki Muraoka, Yasuo Murakami, Tsutomu Abe | 1989-10-03 |
| 4842426 | Bearing assembly | Shigeki Matsunaga | 1989-06-27 |
| 4774749 | Plain bearings and process for manufacturing same | — | 1988-10-04 |
| RE32573 | Process for producing a ferrofluid, and a composition thereof | Shigeki Matsunaga | 1988-01-05 |
| 4598914 | Sealing and bearing means by use of ferrofluid | Hiromi Sugi, Yasuo Murakami, Hiromitsu Asai | 1986-07-08 |
| 4491373 | Construction of the mating sliding members in a linear feeding means | Hiromi Sugi, Hiromitsu Asai | 1985-01-01 |
| 4486026 | Sealing and bearing means by use of ferrofluid | Hiromi Sugi, Yasuo Murakami, Hiromitsu Asai | 1984-12-04 |
| 4485024 | Process for producing a ferrofluid, and a composition thereof | Shigeki Matsunaga | 1984-11-27 |
| 4309916 | Bearing apparatus for gear type power transmission system | Takeo Ohkuma, Akihiko Tanaka, Shinichi Shirota | 1982-01-12 |