Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6510041 | Electrolytic capacitor unit for audio apparatus | Yasuhiko Soga, Mitsuru Yoneda | 2003-01-21 |
| 6268663 | Power supply controller for vehicle with function of preventing running down of battery | Ken-ichi Abe, Shigeki Itabashi, Hiroshi Tutumi | 2001-07-31 |
| D418812 | Voltage stabilizer | — | 2000-01-11 |
| 5942885 | Power compensating device for battery | Kunio Nemoto | 1999-08-24 |
| 5252418 | Electrophotographic photoreceptor with protruding inorganic insulator pieces and an electrophotographic apparatus utilizing the same | Fuminori Ishikawa, Akira Sato, Kunihiro Tamahashi, Masatoshi Wakagi, Katsumi Tamura +6 more | 1993-10-12 |
| 5123933 | Method of producing magnetic disk | Yasushi Ito, Yoshiki Kato, Jun Fumioka | 1992-06-23 |
| 5079062 | Magnetic recording medium having a thin film magnetic layer formed over a non-magnetic substrate which has powder grains of the substrate disposed on its surface | Kenzo Masuda, Fumio Nakano | 1992-01-07 |
| 5028242 | Lapping member and lapping tape | Yasushi Ito, Yoshiki Kato, Jun Fumioka | 1991-07-02 |
| 4844963 | Magnetic disk and method of manufacturing same | Eiichi Takasuna | 1989-07-04 |
| 4842618 | Method of producing magnetic disk | Yasushi Ito, Yoshiki Kato, Jun Fumioka | 1989-06-27 |
| 4762534 | Method of producing magnetic disk | Yasushi Ito, Yoshiki Kato, Jun Fumioka | 1988-08-09 |