Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4960668 | Magnetic toner for electrophotography | Heihachi Yushina, Hiromi Horiuchi, Yukio Yamaguchi, Yasuo Kamoshita, Kiyoshi Sekihara | 1990-10-02 |
| 4839207 | Optical recording medium and process for producing the same | Yoshimitsu Kobayashi, Yoshiyuki Kisaka, Hidemi Yoshida, Michikazu Horie, Takanori Tamura +1 more | 1989-06-13 |
| 4764448 | Amorphous silicon hydride photoreceptors for electrophotography, process for the preparation thereof, and method of use | Hiromi Horiuchi, Yukio Yamaguchi, Yasuo Kamoshita, Kiyoshi Sekihara | 1988-08-16 |
| 4743502 | Magneto-optical medium | Yoshimitsu Kobayashi, Jun Sasaki, Yukio Watanabe | 1988-05-10 |
| 4551575 | Substrate for amorphous silicon semiconductor material | Kiyoshi Takahashi, Makoto Konagai, Takeshi Omori | 1985-11-05 |