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Patent applications and USPTO patent grants for Hayamizu; Yoshisada.The latest application filed is for "pentagonal roof prism for viewfinder".
Patent | Date |
---|---|
Pentagonal roof prism for viewfinder Grant 4,291,945 - Hayamizu September 29, 1 | 1981-09-29 |
Pattern projector for automatic focusing endoscope Grant 4,153,834 - Hayamizu May 8, 1 | 1979-05-08 |
Endoscope Grant 4,036,218 - Yamashita , et al. July 19, 1 | 1977-07-19 |
Endoscope capable of changing over the directions of visual field Grant 3,918,438 - Hayamizu , et al. November 11, 1 | 1975-11-11 |
Elongated Variable Magnification Optical System Having Selectively Interchangeable Lenses Grant 3,637,282 - Hayamizu , et al. January 25, 1 | 1972-01-25 |
Optical System With Continuously Variable Magnification Grant 3,576,358 - Hayamizu , et al. April 27, 1 | 1971-04-27 |
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