Issued Patents 1989
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858042 | Cassette insertion detecting mechanism | Kimichika Yamada, Hiroyuki Ohkawa | 1989-08-15 |
| 4855848 | Double insertion and inner lid float preventing mechanism | Kimichika Yamada, Hiroyuki Ohkawa | 1989-08-08 |
| 4850366 | Ultrasonic diagnosis apparatus for displaying speed or correlation between speed and speed dispersion by color change | Yutaka Sato, Shinji Kishimoto, Satoshi Tamano | 1989-07-25 |
| 4840180 | Ultrasonic diagnosis apparatus for measurement of speed of moving medium in a living body | Yutaka Sato, Shinji Kishimoto, Satoshi Tamano | 1989-06-20 |
| 4831473 | Dust door mechanism in tape player | Kimichika Yamada, Hiroyuki Ohkawa | 1989-05-16 |
| 4830016 | Ultrasonic diagnosis apparatus | Satoshi Tamano, Shinji Kishimoto, Yutaka Sato | 1989-05-16 |
| 4817619 | Ultrasonic diagnosis apparatus | Takashi Sugiyama, Satoshi Tamano | 1989-04-04 |
| 4815200 | Method for improving accuracy of connections to electrical terminal | — | 1989-03-28 |
| 4810287 | Process for producing steel for valve springs | Tsutomu Saka, Tomohito Iikubo | 1989-03-07 |
| 4795609 | High-strength steel for valve springs, process for producing the steel, and valve springs made of the same | Tsutomu Saka, Tomohito Iikubo | 1989-01-03 |