Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4766603 | Aperture device of radiation diagnostic apparatus | Kanichi Okabe, Hirotsugu Suzuki, Katsuhiko Koyama | 1988-08-23 |
| 4544247 | Stereoscopic projecting apparatus | Yoshio Ohno, Katsuhiko Koyama | 1985-10-01 |
| 4413352 | X-Ray stereoscopic cinematography apparatus | — | 1983-11-01 |
| 4383328 | X-Ray stereoscopic cinematography apparatus | Tetsurou Kurihara | 1983-05-10 |