Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11203803 | Steel with high hardness and excellent toughness | Yoritoshi Minamino, Koji Yamamoto, Yusuke Hiratsuka | 2021-12-21 |
| 8679400 | Sintered material, ferrous sintered sliding material, producing method of the same, sliding member, producing method of the same and coupling device | — | 2014-03-25 |
| 8480820 | Ferrous abrasion resistant sliding materials and sliding members | — | 2013-07-09 |
| 8404356 | Contact material, composite sintered contact component and method of producing same | Yoshikiyo Tanaka, Tetsuo Onishi | 2013-03-26 |
| 8283046 | Ferrous sintered multilayer roll-formed bushing, producing method of the same and connecting device | — | 2012-10-09 |
| 8257514 | Ferrous seal sliding parts and producing method thereof | Koji Yamada, Shigeo Otsuka | 2012-09-04 |
| 8083869 | Ferrous seal sliding parts and producing method thereof | Chikara Nakao | 2011-12-27 |
| 7998238 | Sintered sliding member and connecting device | Tetsuo Ohnishi, Kazuo Okamura | 2011-08-16 |
| 7967922 | Ferrous abrasion resistant sliding material | — | 2011-06-28 |
| 7922836 | Ferrous abrasion resistant sliding material | — | 2011-04-12 |
| 7691213 | Case hardened gear and method of producing the same | Masanari Furumoto, Chikara Nakao, Noriko Morioka | 2010-04-06 |
| 7691212 | Rolling element and method of producing the same | — | 2010-04-06 |
| 7648773 | Thermal spray membrane contact material, contact member and contact part, and apparatuses to which they are applied | Tetsuo Ohnishi, Kazuo Okamura | 2010-01-19 |
| 7641747 | Rolling member and producing method thereof | — | 2010-01-05 |
| 7638005 | Track bushing and method and apparatus for producing the same | Chigo Okayama, Masayuki Ohishi, Takeyo Terao | 2009-12-29 |
| 7604304 | Crawler, crawler pin, crawler bush, and crawler manufacturing method | — | 2009-10-20 |
| 7566373 | Rolling member and producing method thereof | — | 2009-07-28 |
| 7544255 | Rolling element | — | 2009-06-09 |
| 7473296 | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same | Kazuo Okamura, Yoshikiyo Tanaka, Tetsuo Ohnishi | 2009-01-06 |
| 7438979 | Thermal spray membrane contact material, contact member and contact part, and apparatuses to which they are applied | Tetsuo Ohnishi, Kazuo Okamura | 2008-10-21 |
| 7422643 | Rolling element and method of producing the same | Masanari Furumoto, Chikara Nakao, Noriko Morioka | 2008-09-09 |
| 7306684 | Crawler bushing and method and device for producing the same | Chigo Okayama, Masayuki Ohishi, Takeyo Terao | 2007-12-11 |
| 7300623 | Contact material, composite sintered contact component and method of producing same | Yoshikiyo Tanaka, Tetsuo Onishi | 2007-11-27 |
| 7282078 | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same | Kazuo Okamura, Yoshikiyo Tanaka, Tetsuo Ohnishi | 2007-10-16 |
| 7282173 | Track bushing and method and apparatus for producing the same | Chigo Okayama, Masayuki Ohishi, Takeyo Terao | 2007-10-16 |