Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6614518 | Multi-point light measuring system | Norio Ishikawa, Susumu Shirai, Michio Nishio, Ryuji Tsuji, Tomoya Kimata | 2003-09-02 |
| 5589934 | Light measuring apparatus capable of measuring ambient light and flash light | Susumu Shirai, Kenichiro Hibi, Yoshihiro Okui, Takehiro Katoh, Yoshihiko Azuma | 1996-12-31 |
| 5565990 | Color temperature meter for use in photographing | Seiki Yamaguchi, Mikio Uematsu, Yoshihiro Okui | 1996-10-15 |