Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5202151 | Electroless gold plating solution, method of plating with gold by using the same, and electronic device plated with gold by using the same | Jiro Ushio, Akira Tomizawa, Hitoshi Yokono, Naoya Kanda, Naoko Matsuura +2 more | 1993-04-13 |
| 5197045 | Electronic watch | — | 1993-03-23 |
| 5151886 | Analog electric timepiece using an intermittent driving signal | — | 1992-09-29 |
| 4963974 | Electronic device plated with gold by means of an electroless gold plating solution | Jiro Ushio, Akira Tomizawa, Hitoshi Yokono, Naoya Kanda, Naoko Matsuura +2 more | 1990-10-16 |
| 4916676 | Electronic timepiece | — | 1990-04-10 |
| 4912689 | Compensating circuitry for an electronic watch | — | 1990-03-27 |
| 4910721 | Electronic watch | Motomu Hayakawa, Osamu Takahashi | 1990-03-20 |
| 4885730 | Analog electronic timepiece using an intermittent driving signal | — | 1989-12-05 |
| 4880464 | Electroless gold plating solution | Jiro Ushio, Hitoshi Yokono, Akira Tomizawa | 1989-11-14 |
| 4864442 | Magnetic read/write apparatus | Nobuo Ishikawa, Mamoru Miyasaka, Kenichi Hirota | 1989-09-05 |
| 4839760 | Read/write apparatus for disk cartridge | Noboru Yamada, Tomohiko Abe | 1989-06-13 |
| 4804559 | Electroless gold plating solution | Jiro Ushio, Hitoshi Yokono, Akira Tomizawa | 1989-02-14 |
| 4765528 | Plating process for an electronic part | Masao Sekibata, Toshihiko Ohta | 1988-08-23 |
| 4324629 | Process for regenerating chemical copper plating solution | Hitoshi Oka, Hiroshi Kikuchi, Hitoshi Yokono, Haruo Suzuki, Toyofusa Yoshimura +3 more | 1982-04-13 |
| 4310563 | Method for automatically controlling composition of chemical copper plating solution | Hitoshi Oka, Kenji Nakamura, Hitoshi Yokono, Tokio Isogai, Akira Matsuo +1 more | 1982-01-12 |
| 4303443 | Electroless copper plating solution | Hitoshi Oka, Isamu Tanaka, Akira Matsuo, Hitoshi Yokono, Nobuo Nakagawa +1 more | 1981-12-01 |