Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9588305 | Optical connector plug | — | 2017-03-07 |
| 9423574 | Extraction mechanism and device | — | 2016-08-23 |
| 7184379 | Optical disk recording/reproducing method and apparatus in which recording properties of the disk are detected when recording speed is changed | Akira Tsukihashi, Toru Tanaka, Yasushi Hanamoto, Toshihiko Hiroshima, Yutaka Imamura | 2007-02-27 |
| 6511560 | Thin, forged magnesium alloy casing and method for producing same | Isao Seki, Shigeo Hama, Shigehiro Taniike, Fukashi Watanabe, Masahiko Kakizaki | 2003-01-28 |
| 6316129 | Thin, forged magnesium alloy casing and method for producing same | Isao Seki, Shigeo Hama, Shigehiro Tanike, Fukashi Watanabe, Masahiko Kakizaki | 2001-11-13 |
| 5906441 | Resin made cage for an angular ball bearing | — | 1999-05-25 |
| 5444618 | Apparatus and method for topographic processing | Makoto Ibusuki, Yasuei Nomoto | 1995-08-22 |
| 5225992 | Computerized overcurrent detector | Katsuo Kobari, Shunsuke Matsubara | 1993-07-06 |
| 5093609 | Servomotor control method | Keiji Sakamoto, Yasusuke Iwashita | 1992-03-03 |
| 4956593 | Servo motor controlling method | Keiji Sakamoto, Yasusuke Iwashita | 1990-09-11 |
| 4950967 | Servomotor control apparatus | Keiji Sakamoto, Yasusuke Iwashita | 1990-08-21 |
| 4864209 | Negative feedback control system | Shunsuke Matsubara | 1989-09-05 |
| 4547719 | Synchronous motor drive apparatus | Keiji Sakamoto | 1985-10-15 |
| 4458192 | A.C. Motor drive apparatus | Keiji Sakamoto | 1984-07-03 |