Issued Patents 1989
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881900 | Sensing display apparatus of image pattern | Mikiharu Matsuoka, Yasuko Miyazaki, Takashi Kanemoto, Hirohiko Katayama, Tamao Ikuta | 1989-11-21 |
| 4873071 | Graphite structures and method for production thereof | Takeshi Imamura, Hidemasa Honda, Masaki Fujii, Masanori Minohata | 1989-10-10 |
| 4868827 | Digital data processing system | Kazuya Yamada, Kazunori Nishikawa, Koji Tanaka | 1989-09-19 |
| 4866654 | Digital multiplying circuit | — | 1989-09-12 |
| 4839755 | Rotary head type digital signal reproducing apparatus with different modes and tracking control | Shoji Ueno, Shiro Yoshida | 1989-06-13 |
| 4837641 | Rotary head type digital signal recording and reproducing apparatus | Takaro Mori | 1989-06-06 |
| 4835629 | Code error correcting circuit | Shoji Ueno, Yasuo Inoue | 1989-05-30 |
| 4818449 | Process to prevent crack formation in the production of carbon fibers | Takeshi Imamura, Hidemasa Honda, Masatoshi Tsuchitani, Ryoichi Nakajima | 1989-04-04 |
| 4811128 | Digital signal recording and reproducing apparatus having rotary magnetic heads | Tsuyoshi Ono, Kazuo Hikawa, Atsushi Hayami, Yasuo Inoue, Fumiaki Ono | 1989-03-07 |
| 4809093 | Apparatus for selectively controlling magnetic tape recorder's muting operation in response to detection of errors in the reproduced signal by one of two heads | Makoto Hamabe | 1989-02-28 |
| 4809275 | Parity signal generating circuit | Yasuo Inoue | 1989-02-28 |