Issued Patents All Time
Showing 101–122 of 122 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4497000 | Magnetic recording/reproducing apparatus | Toshimichi Terada, Keiichi Komatsu, Kenji Satoh | 1985-01-29 |
| 4479892 | Ag-Metal oxides electrical contact materials | — | 1984-10-30 |
| 4479190 | Detecting apparatus using a digital computer | Hiromitsu Takai | 1984-10-23 |
| 4475991 | Method of diffusion cladding a Fe-containing base material for decorative articles and ornaments with precious metal constituents including Ag | — | 1984-10-09 |
| 4472211 | Method of internally oxidizing Ag-Sn alloy contact material | — | 1984-09-18 |
| 4466026 | Record/reproduce circuit for VTR | Kuniaki Miura, Noboru Kojima, Keiichi Komatsu, Teizo Tamura, Makoto Konosu +1 more | 1984-08-14 |
| 4457787 | Internal oxidation method of Ag alloys | — | 1984-07-03 |
| 4452652 | Electrical contact materials and their production method | — | 1984-06-05 |
| 4452651 | Electrical contact materials and their production method | — | 1984-06-05 |
| 4432487 | Method of overlaying stainless steel material for decorative articles and ornaments with a precious metal alloy | — | 1984-02-21 |
| 4429458 | Method for making composite electrical contact welded in situ to supporting metal, and apparatus therefor | — | 1984-02-07 |
| 4414742 | Method of making composite electrical contact | — | 1983-11-15 |
| 4412971 | Electrical contact materials of internally oxidized Ag-Sn-Bi alloy | — | 1983-11-01 |
| 4335507 | Method for making a tri-metallic composite electrical contact | — | 1982-06-22 |
| 4321618 | Reproducing system for video tape recorders | Koichi Hirose | 1982-03-23 |
| 4309461 | Method of compounding decorative precious metal alloy selectively onto austenite stainless steel article | — | 1982-01-05 |
| 4246321 | Ag-SnO Alloy composite electrical contact | — | 1981-01-20 |
| 4243413 | Integrated Ag-SnO alloy electrical contact materials | — | 1981-01-06 |
| 4242135 | Electrical contact materials of internally oxidized Ag-Sn-Bi alloy | — | 1980-12-30 |
| 4232812 | Apparatus for making a tri-metallic composite electrical contact | — | 1980-11-11 |
| 4216431 | Integrated circuit for frequency conversion | Yoshizumi Watatani | 1980-08-05 |
| 4210942 | Video signal play-back circuit | Hisashi Nakamura, Toshiyuki Akiyama, Yoichi Tokunaga | 1980-07-01 |