Katsura Nakajima

Person

Nirasaki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light quantity adjustment apparatus, lens unit and optical apparatu...
- Patent number 8,654,455
- Issue date Feb 18, 2014
- Nisca Corporation
- Katsura Nakajima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnet rotor, electromagnetic drive device and light quantity adjus...
- Patent number 7,960,876
- Issue date Jun 14, 2011
- Nisca Corporation
- Keijirou Amino
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Manufacturing method of magnet rotor
- Patent number 7,685,698
- Issue date Mar 30, 2010
- Nisca Corporation
- Keijirou Amino
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
ND filter and aperture device including the same
- Patent number 6,842,301
- Issue date Jan 11, 2005
- Nisca Corporation
- Katsura Nakajima
- G02 - OPTICS
Information Patent Grant
ND filter, method for producing the ND filter, and aperture device...
- Patent number 6,842,302
- Issue date Jan 11, 2005
- Nisca Corporation
- Katsura Nakajima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
LIGHT QUANTITY ADJUSTMENT APPARATUS, LENS UNIT AND OPTICAL APPARATU...
- Publication number 20120287516
- Publication date Nov 15, 2012
- Nisca Corporation
- Katsura Nakajima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LIGHT QUANTITY ADJUSTMENT APPARATUS LENS UNIT AND OPTICAL APPARATUS...
- Publication number 20120194796
- Publication date Aug 2, 2012
- Nisca Corporation
- Katsura NAKAJIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Density filter, method of forming the density filter and apparatus...
- Publication number 20080316628
- Publication date Dec 25, 2008
- Nisca Corporation
- Katsura Nakajima
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Manufacturing method of magnet rotor, magnet rotor manufactured by...
- Publication number 20060269281
- Publication date Nov 30, 2006
- Nisca Corporation
- Keijirou Amino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ND filter and aperture device including the same
- Publication number 20040027706
- Publication date Feb 12, 2004
- Katsura Nakajima
- G02 - OPTICS
Information Patent Application
ND filter, method for producing the ND filter, and aperture device...
- Publication number 20040008439
- Publication date Jan 15, 2004
- Katsura Nakajima
- G02 - OPTICS

Katsura Nakajima

Person

Patents Grantslast 30 patents

Light quantity adjustment apparatus, lens unit and optical apparatu...

Magnet rotor, electromagnetic drive device and light quantity adjus...

Manufacturing method of magnet rotor

ND filter and aperture device including the same

ND filter, method for producing the ND filter, and aperture device...

Patents Applicationslast 30 patents

LIGHT QUANTITY ADJUSTMENT APPARATUS, LENS UNIT AND OPTICAL APPARATU...

LIGHT QUANTITY ADJUSTMENT APPARATUS LENS UNIT AND OPTICAL APPARATUS...

Density filter, method of forming the density filter and apparatus...

Manufacturing method of magnet rotor, magnet rotor manufactured by...

ND filter and aperture device including the same

ND filter, method for producing the ND filter, and aperture device...