Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051650 | Ultraviolet-suppressed light source, coating agent used in the same, and method for manufacturing the same | Akira Taya, Keiji Hatakeyama, Kanehiro Saito, Mitsumasa Saito | 1991-09-24 |
| 4203103 | Battery deterioration indicator for an electronic desk top calculator | Yoshishige Ogawa, Ichizo Takimoto | 1980-05-13 |