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Patent applications and USPTO patent grants for Yasukuni; Mitsuo.The latest application filed is for "catadioptric lens system with light transmission control means".
Patent | Date |
---|---|
Catadioptric lens system with light transmission control means Grant 4,256,372 - Yasukuni , et al. March 17, 1 | 1981-03-17 |
Reflecting optical system for projection television Grant 4,234,894 - Tokumaru , et al. November 18, 1 | 1980-11-18 |
Electrochromic light regulator Grant 4,218,120 - Kawamura , et al. August 19, 1 | 1980-08-19 |
Zoom lens system capable of macrophotography Grant 4,198,126 - Abe , et al. April 15, 1 | 1980-04-15 |
Zoom lens system capable of constant magnification photography Grant 4,193,667 - Yasukuni , et al. March 18, 1 | 1980-03-18 |
Lens system with frontal aperture stop Grant 4,093,348 - Yasukuni June 6, 1 | 1978-06-06 |
Lens system capable of wide range zooming and macrophotography Grant 4,080,047 - Uesugi , et al. * March 21, 1 | 1978-03-21 |
Varifocal lens system with macro-photography capabilities Grant 3,994,572 - Uesugi , et al. November 30, 1 | 1976-11-30 |
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