Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961120 | Recording and/or reproducing apparatus with rotary head for magnetic tape cassette | Tatsuya Mototake, Tatsuyuki Outou, Yoshinori Yamamoto | 1990-10-02 |
| 4881137 | Magnetic tape cassette with tape protective closure and lock mechanism | Hiroshi Meguro, Yoshinori Yamamoto, Masao Ohyama, Kenichi Horikawa, Shigeru Mizusawa | 1989-11-14 |
| 4843510 | Magnetic tape cassette with tape protective closure and lock mechanism | Hiroshi Meguro, Yoshinori Yamamoto, Masao Ohyama, Kenichi Horikawa, Shigeru Mizusawa | 1989-06-27 |
| 4816953 | Tape cassette with groove engageable with loading hook | Masao Ohyama, Yoshinori Yamamoto, Kenichi Horikawa | 1989-03-28 |
| 4740849 | Guide arrangements for maintaining magnetic tape in proper position relative to a head | Takuya Kaeriyama, Masanori Kimizuka, Masayuki Kondo | 1988-04-26 |
| 4694360 | Tape cassette with concave engagement portion and player with hook engageable therewith | Masao Ohyama, Yoshinori Yamamoto, Kenichi Horikawa | 1987-09-15 |
| 4644433 | Magnetic tape cassette having integrated optical elements | Kenichi Horikawa, Yoshinori Yamamoto | 1987-02-17 |
| 4625253 | Magnetic tape cassette | Norikazu Horikawa, Yoshinori Yamamoto | 1986-11-25 |
| 4572461 | Magnetic tape cassette | Kenichi Horikawa, Yoshinori Yamamoto | 1986-02-25 |