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name:-0.00053286552429199
name:-0.082113027572632
name:-0.00044512748718262
Oizumi; Kouji Patent Filings

Oizumi; Kouji

Patent Applications and Registrations

Patent applications and USPTO patent grants for Oizumi; Kouji.The latest application filed is for "compact varifocal lens".

Company Profile
0.12.0
  • Oizumi; Kouji - Kanagawa JP
  • Oizumi; Kouji - Tokyo JP
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Compact varifocal lens
Grant 5,305,148 - Ikemori , et al. April 19, 1
1994-04-19
Compact zoom lens
Grant 5,270,866 - Oizumi , et al. December 14, 1
1993-12-14
Automatic multi-point distance measuring device
Grant 5,125,735 - Oizumi , et al. June 30, 1
1992-06-30
Camera having telescopic capability
Grant 4,949,107 - Kitagishi , et al. August 14, 1
1990-08-14
Photographic optical device with variable magnification
Grant 4,871,238 - Sato , et al. October 3, 1
1989-10-03
Finder of variable magnification
Grant 4,842,395 - Sato , et al. June 27, 1
1989-06-27
Variable magnification optical system
Grant 4,830,474 - Nakayama , et al. May 16, 1
1989-05-16
View finder of variable magnification
Grant 4,757,336 - Nakayama , et al. July 12, 1
1988-07-12
Variable power finder
Grant 4,751,539 - Yamada , et al. June 14, 1
1988-06-14
Zoom lens of short total length
Grant 4,726,668 - Nakayama , et al. February 23, 1
1988-02-23
Beam splitter for changing optical paths small tilt
Grant 4,697,882 - Sato , et al. October 6, 1
1987-10-06
Rear conversion lens
Grant 4,643,536 - Yamada , et al. February 17, 1
1987-02-17

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