Masaki Imaizumi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Eyepiece lens system
- Patent number 5,731,905
- Issue date Mar 24, 1998
- Olympus Optical Co., Ltd.
- Masaki Imaizumi
- G02 - OPTICS
Information Patent Grant
Photographing optical apparatus
- Patent number 5,727,239
- Issue date Mar 10, 1998
- Olympus Optical Co., Ltd.
- Masashi Hankawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Prismatic telescope optical system
- Patent number 5,598,296
- Issue date Jan 28, 1997
- Olympus Optical Co., Ltd.
- Masaki Imaizumi
- G02 - OPTICS
Information Patent Grant
Finder optical system with low-hygroscopic organic material
- Patent number 5,581,400
- Issue date Dec 3, 1996
- Olympus Optical Co., Ltd.
- Hiroshi Takase
- G02 - OPTICS
Information Patent Grant
Wide-field eyepiece lens system
- Patent number 5,557,464
- Issue date Sep 17, 1996
- Olympus Optical Co., Ltd.
- Masaki Imaizumi
- G02 - OPTICS
Information Patent Grant
Real image type finder system that changes an aspect ratio of a vis...
- Patent number 5,321,457
- Issue date Jun 14, 1994
- Olympus Optical Co., Ltd.
- Masaki Imaizumi
- G02 - OPTICS
Information Patent Grant
Compact zoom lens system
- Patent number 5,148,321
- Issue date Sep 15, 1992
- Olympus Optical Co., Ltd.
- Hisashi Goto
- G02 - OPTICS
Information Patent Grant
Vari-focal photographic lens system of rear lens group exchange type
- Patent number 4,715,693
- Issue date Dec 29, 1987
- Olympus Optical Co., Ltd.
- Hiroshi Takase
- G02 - OPTICS
Information Patent Grant
Varifocal lens system
- Patent number 4,708,442
- Issue date Nov 24, 1987
- Olympus Optical Co., Ltd.
- Toru Fujii
- G02 - OPTICS
Information Patent Grant
Zoom lens system
- Patent number 4,693,566
- Issue date Sep 15, 1987
- Olympus Optical Co., Ltd.
- Masaki Imaizumi
- G02 - OPTICS
Information Patent Grant
Vari-focal photographic lens system of lens group exchange type
- Patent number 4,668,054
- Issue date May 26, 1987
- Olympus Optical Co., Ltd.
- Hiroshi Takase
- G02 - OPTICS
Information Patent Grant
Compact vari-focal photographic lens system
- Patent number 4,653,870
- Issue date Mar 31, 1987
- Olympus Optical Co., Ltd.
- Masaki Imaizumi
- G02 - OPTICS
Information Patent Grant
Telephoto lens system having an improved focusing arrangement
- Patent number 4,609,263
- Issue date Sep 2, 1986
- Olympus Optical Co., Ltd.
- Masaki Imaizumi
- G02 - OPTICS
Information Patent Grant
Automatic focus detecting mechanism for endoscopes
- Patent number 4,562,344
- Issue date Dec 31, 1985
- Olympus Optical Co., Ltd.
- Shin-ichi Mihara
- G02 - OPTICS
Information Patent Grant
Focusing method for a telephoto lens system
- Patent number 4,558,928
- Issue date Dec 17, 1985
- Olympus Optical Co., Ltd.
- Masaki Imaizumi
- G02 - OPTICS

Masaki Imaizumi

Person

Patents Grantslast 30 patents

Eyepiece lens system

Photographing optical apparatus

Prismatic telescope optical system

Finder optical system with low-hygroscopic organic material

Wide-field eyepiece lens system

Real image type finder system that changes an aspect ratio of a vis...

Compact zoom lens system

Vari-focal photographic lens system of rear lens group exchange type

Varifocal lens system

Zoom lens system

Vari-focal photographic lens system of lens group exchange type

Compact vari-focal photographic lens system

Telephoto lens system having an improved focusing arrangement

Automatic focus detecting mechanism for endoscopes

Focusing method for a telephoto lens system