Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8118953 | Method for producing steel part having long rolling contact fatigue life | Takashi Iwamoto, Kunikazu Tomita, Hideto Kimura, Takaaki Toyooka, Hisato Nishisaka +1 more | 2012-02-21 |
| 7763124 | Steel material with excellent rolling fatigue life and method of producing the same | Takashi Iwamoto, Akihiro Matsuzaki, Kazuhiko Ohno, Hisashi Harada, Hisato Nishisaka | 2010-07-27 |
| 7436906 | Synchronous detector with high accuracy in detecting synchronization and a method therefor | — | 2008-10-14 |
| 7413704 | Case hardening bearing steel having excellent toughness and rolling contact fatigue life in intermediate temperature | Akihiro Matsuzaki, Takashi Iwamoto, Katsuhiko Kizawa | 2008-08-19 |
| 7207933 | Carburized roller member made of high carbon chromium steel | Katsuhiko Kizawa | 2007-04-24 |
| 7205834 | Power amplifier | — | 2007-04-17 |
| 7104697 | Bearing part and fabrication method therefor | Kazutoshi Toda | 2006-09-12 |
| 7056191 | Method for chamfering a plate-like member | Hideo Takatsuji, Akihiko Aritomi, Keiji Fujikawa, Tatsuya Yamasaki | 2006-06-06 |
| 6979766 | Stringed instrument neck part variable deformation correcting device | — | 2005-12-27 |
| 6893609 | Bearing material | Akihiro Matsuzaki, Takashi Iwamoto, Yoshio Yamazaki, Katsuhiko Kizawa | 2005-05-17 |
| 6874943 | Antifriction bearing and process for producing outer race for use in antifriction bearing | Katsuhiko Kizawa | 2005-04-05 |
| 6858100 | Rolling bearing | Hisashi Harada, Hajime Tazumi | 2005-02-22 |
| 6780139 | Toroidal continuously variable transmission | Yasuharu Misada, Yasuo Asai, Yoshihiro Ono, Teruo Hoshino, Adrian Lee +1 more | 2004-08-24 |
| 6685596 | Variator disc and a method of fabricating the same | Kiichiro Yamashita, Shinji Yasuhara | 2004-02-03 |
| 6652672 | Material for bearing parts | Satoshi Soga | 2003-11-25 |
| 6537390 | Antifriction bearing | — | 2003-03-25 |
| 6402658 | Toroidal type continuously variable transmission | Shinji Yasuhara, Takao Tamagawa, Kazuo Rokkaku, Shoji Eguchi, Yoshihiro Ono | 2002-06-11 |
| 6215178 | Semiconductor device | Yuji Fukuzawa | 2001-04-10 |
| 5908515 | Bearing component | Atsuhiko Ohta | 1999-06-01 |
| 5733388 | Steel composition for bearings and method of producing the same | Yutaka Kurebayashi, Sadayuki Nakamura, Atsuhiko Ohta | 1998-03-31 |
| 5652184 | Method of manufacturing a thin semiconductor package having many pins and likely to dissipate heat | Morihiko Ikemizu | 1997-07-29 |
| 5585645 | Media detector employing light guides and reflectors to direct a light beam across the transport path which is interrupted by the presence of the media | — | 1996-12-17 |
| 5442232 | Thin semiconductor package having many pins and likely to dissipate heat | Morihiko Ikemizu | 1995-08-15 |
| 5403545 | Bearing steel | Yatsuka Takata, Akira Muroga, Yoshihiro Wakikado, Takao Ooki, Hazime Tazumi +5 more | 1995-04-04 |
| 4883183 | Bill depositing/dispensing apparatus | Haruo Kimura, Takeo Ishidate | 1989-11-28 |