Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397533 | Photographic light measuring device | Kazuhiko Naruse, Norio Ishikawa | 1983-08-09 |
| 4397553 | Photographic spot measuring apparatus | Kazuhiko Naruse | 1983-08-09 |
| 4389118 | Color meter | Norio Ishikawa, Izumi Horie | 1983-06-21 |
| 4373793 | Light measuring device for flash photography | Nobuyuki Taniguchi | 1983-02-15 |
| 4367932 | Exposure control system | Norio Ishikawa, Nobuyuki Taniguchi | 1983-01-11 |
| 4364662 | Dual mode camera exposure meters | Toru Kisanuki, Susumu Shirai | 1982-12-21 |
| 4353629 | System and method for calculating a light information value | — | 1982-10-12 |
| 4291979 | Device for measuring light under ambient light and/or flash light and a method therefor | Norio Ishikawa, Nobuyuki Taniguchi | 1981-09-29 |
| 4262997 | Exposure information indicating device | — | 1981-04-21 |
| 4229088 | Exposure time controlling system | Nobuyuki Taniguchi | 1980-10-21 |
| 4227808 | Digital light measuring device | — | 1980-10-14 |