Norikazu Yokoi

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Variable magnification optical system, optical equipment, and metho...
- Patent number 12,092,802
- Issue date Sep 17, 2024
- Nikon Corporation
- Takahiro Ishikawa
- G02 - OPTICS
Information Patent Grant
Variable magnification optical system, optical equipment, and metho...
- Patent number 11,644,655
- Issue date May 9, 2023
- Nikon Corporation
- Takahiro Ishikawa
- G02 - OPTICS
Information Patent Grant
Zoom lens, optical apparatus, and method for manufacturing zoom lens
- Patent number 11,579,421
- Issue date Feb 14, 2023
- Nikon Corporation
- Akihiko Obama
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Variable magnification optical system, optical equipment, and metho...
- Patent number 11,409,086
- Issue date Aug 9, 2022
- Nikon Corporation
- Takahiro Ishikawa
- G02 - OPTICS
Information Patent Grant
Zoom lens, optical apparatus, and method for manufacturing zoom lens
- Patent number 10,895,721
- Issue date Jan 19, 2021
- Nikon Corporation
- Akihiko Obama
- G02 - OPTICS
Information Patent Grant
Variable magnification optical system, optical apparatus, and varia...
- Patent number 10,317,654
- Issue date Jun 11, 2019
- Nikon Corporation
- Kensuke Uchida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Zoom lens, optical apparatus, and method for manufacturing zoom lens
- Patent number 10,203,488
- Issue date Feb 12, 2019
- Nikon Corporation
- Akihiko Obama
- G02 - OPTICS
Information Patent Grant
Zooming optical system, optical apparatus and method for manufactur...
- Patent number 9,759,898
- Issue date Sep 12, 2017
- Nikon Corporation
- Norikazu Yokoi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Zoom lens, optical apparatus, and method for manufacturing zoom lens
- Patent number 9,523,843
- Issue date Dec 20, 2016
- Nikon Corporation
- Akihiko Obama
- G02 - OPTICS
Information Patent Grant
Zoom lens system, optical apparatus and method for manufacturing zo...
- Patent number 9,513,471
- Issue date Dec 6, 2016
- Nikon Corporation
- Norikazu Yokoi
- G02 - OPTICS
Information Patent Grant
Zoom lens system, optical apparatus, and method for manufacturing z...
- Patent number 9,030,755
- Issue date May 12, 2015
- Nikon Corporation
- Issei Tanaka
- G02 - OPTICS
Information Patent Grant
Zoom lens system, optical apparatus and method for manufacturing zo...
- Patent number 8,913,327
- Issue date Dec 16, 2014
- Nikon Corporation
- Akihiko Obama
- G02 - OPTICS
Information Patent Grant
Zoom lens system, optical apparatus and method for manufacturing zo...
- Patent number 8,743,470
- Issue date Jun 3, 2014
- Nikon Corporation
- Akihiko Obama
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL EQUIPMENT, AND METHO...
- Publication number 20230251472
- Publication date Aug 10, 2023
- Nikon Corporation
- Takahiro ISHIKAWA
- G02 - OPTICS
Information Patent Application
VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL EQUIPMENT, AND METHO...
- Publication number 20220365326
- Publication date Nov 17, 2022
- Nikon Corporation
- Takahiro ISHIKAWA
- G02 - OPTICS
Information Patent Application
VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL EQUIPMENT, AND METHO...
- Publication number 20220035142
- Publication date Feb 3, 2022
- Nikon Corporation
- Takahiro ISHIKAWA
- G02 - OPTICS
Information Patent Application
VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL EQUIPMENT, AND METHO...
- Publication number 20210396976
- Publication date Dec 23, 2021
- Nikon Corporation
- Takahiro ISHIKAWA
- G02 - OPTICS
Information Patent Application
ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS
- Publication number 20210103133
- Publication date Apr 8, 2021
- NIKON CORPORATION
- Akihiko OBAMA
- G02 - OPTICS
Information Patent Application
ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS
- Publication number 20190155005
- Publication date May 23, 2019
- Nikon Corporation
- Akihiko OBAMA
- G02 - OPTICS
Information Patent Application
VARIABLE POWER OPTICAL SYSTEM, OPTICAL APPARATUS, AND VARIABLE POWE...
- Publication number 20180217363
- Publication date Aug 2, 2018
- Nikon Corporation
- Kensuke UCHIDA
- G02 - OPTICS
Information Patent Application
ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS
- Publication number 20170082837
- Publication date Mar 23, 2017
- Nikon Corporation
- Akihiko Obama
- G02 - OPTICS
Information Patent Application
ZOOMING OPTICAL SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTUR...
- Publication number 20150055221
- Publication date Feb 26, 2015
- NIKON CORPORATION
- Norikazu YOKOI
- G02 - OPTICS
Information Patent Application
ZOOM LENS SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZO...
- Publication number 20140334013
- Publication date Nov 13, 2014
- Nikon Corporation
- Akihiko OBAMA
- G02 - OPTICS
Information Patent Application
ZOOM LENS SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING Z...
- Publication number 20120188647
- Publication date Jul 26, 2012
- NIKON CORPORATION
- Issei Tanaka
- G02 - OPTICS
Information Patent Application
ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS
- Publication number 20120105966
- Publication date May 3, 2012
- NIKON CORPORATION
- Akihiko OBAMA
- G02 - OPTICS
Information Patent Application
ZOOM LENS SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZO...
- Publication number 20110273776
- Publication date Nov 10, 2011
- NIKON CORPORATION
- Akihiko OBAMA
- G02 - OPTICS

Norikazu Yokoi

Person

Patents Grantslast 30 patents

Variable magnification optical system, optical equipment, and metho...

Variable magnification optical system, optical equipment, and metho...

Zoom lens, optical apparatus, and method for manufacturing zoom lens

Variable magnification optical system, optical equipment, and metho...

Zoom lens, optical apparatus, and method for manufacturing zoom lens

Variable magnification optical system, optical apparatus, and varia...

Zoom lens, optical apparatus, and method for manufacturing zoom lens

Zooming optical system, optical apparatus and method for manufactur...

Zoom lens, optical apparatus, and method for manufacturing zoom lens

Zoom lens system, optical apparatus and method for manufacturing zo...

Zoom lens system, optical apparatus, and method for manufacturing z...

Zoom lens system, optical apparatus and method for manufacturing zo...

Zoom lens system, optical apparatus and method for manufacturing zo...

Patents Applicationslast 30 patents

VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL EQUIPMENT, AND METHO...

VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL EQUIPMENT, AND METHO...

VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL EQUIPMENT, AND METHO...

VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL EQUIPMENT, AND METHO...

ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS

ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS

VARIABLE POWER OPTICAL SYSTEM, OPTICAL APPARATUS, AND VARIABLE POWE...

ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS

ZOOMING OPTICAL SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTUR...

ZOOM LENS SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZO...

ZOOM LENS SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING Z...

ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS

ZOOM LENS SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZO...