Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7061687 | Zoom lens, and electronic apparatus using the same | — | 2006-06-13 |
| 7050242 | Zoom lens and an imaging apparatus | — | 2006-05-23 |
| 5920450 | Magnetic disk cartridge in which formation of a gap between upper and lower shells is inhibited | Morio Fujiwara | 1999-07-06 |
| 5521557 | Delay detection circuit and low-noise oscillation circuit using the same | Kazuo Yamashita | 1996-05-28 |
| 5497124 | Class AB push-pull drive circuit, drive method therefor and class AB electronic circuit using the same | Kazuo Yamashita, Masatoyo Nishibe, Masahiko Egawa, Akiharu Inoue | 1996-03-05 |
| 5453898 | Magnetic disk cartridge having center core shaped so as to prevent stacked cores from biting into one another | Akira Mizuta | 1995-09-26 |
| 5388004 | Wide angle high magnification zoom lens having fixed group with positive refractive power | — | 1995-02-07 |
| 5202992 | Zoom lens apparatus | Makoto Banno, Hiroshi Miyamae, Kiichirou Ueda | 1993-04-13 |
| 5199010 | Method for initializing a magneto-optical disk using a coil as a means to initialize the disk | Naoshi Sugiyama | 1993-03-30 |
| 5195111 | Programmable frequency dividing apparatus | Kazuo Yamashita, Akiharu Inoue | 1993-03-16 |
| 5045438 | Process for preparing substrate of optical disc | — | 1991-09-03 |
| 4716650 | Method of assembling magnetic recording disk cartridge | Masaaki Utsui, Makoto Shimizu, Noriyuki Hoshina, Takashi Kurihara, Tatsuo Shiino | 1988-01-05 |