Koki Kunii

Person

Koriyama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
ND filter, manufacturing method thereof, and aperture device
- Patent number 7,483,226
- Issue date Jan 27, 2009
- Nidec Copal Corporation
- Koki Kunii
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
ND filter of optical film laminate type with carbon film coating
- Patent number 7,440,204
- Issue date Oct 21, 2008
- Nidec Copal Corporation
- Koki Kunii
- G02 - OPTICS
Information Patent Grant
ND filter and light quantity diaphragming device including the same
- Patent number 7,388,723
- Issue date Jun 17, 2008
- Nidec Copal Corporation
- Koki Kunii
- G02 - OPTICS
Information Patent Grant
ND filter and aperture diaphragm apparatus
- Patent number 7,230,779
- Issue date Jun 12, 2007
- Nidec Copal Corporation
- Koki Kunii
- G02 - OPTICS
Information Patent Grant
Light-guide plate and method for manufacturing the same
- Patent number 7,128,459
- Issue date Oct 31, 2006
- Nidec Copal Corporation
- Junichi Igarashi
- G02 - OPTICS
Information Patent Grant
ND filter having composite PVD film of metal and its oxide
- Patent number 6,671,109
- Issue date Dec 30, 2003
- Nidec Copal Corporation
- Koki Kunii
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
STATOR, ROTATING ELECTRIC MACHINE, VEHICLE, AND STATOR MANUFACTURIN...
- Publication number 20160276887
- Publication date Sep 22, 2016
- Nidec Copal Corporation
- Masakazu WATANABE
- B60 - VEHICLES IN GENERAL
Information Patent Application
SEGMENT CONDUCTORS, STATOR, ROTATING ELECTRICAL MACHINE, AND VEHICL...
- Publication number 20160254718
- Publication date Sep 1, 2016
- Nidec Copal Corporation
- Masakazu WATANABE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Nd filter and light quantity diaphragming device including the same
- Publication number 20060279866
- Publication date Dec 14, 2006
- Nidec Copal Corporation
- Koki Kunii
- G02 - OPTICS
Information Patent Application
ND filter, manufacturing method thereof, and aperture device
- Publication number 20060068226
- Publication date Mar 30, 2006
- Nidec Copal Corporation
- Koki Kunii
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
ND filter of optical film laminate type with carbon film coating
- Publication number 20060061867
- Publication date Mar 23, 2006
- Nidec Copal Corporation
- Koki Kunii
- G02 - OPTICS
Information Patent Application
ND filter and aperture diaphragm apparatus
- Publication number 20050254155
- Publication date Nov 17, 2005
- Nidec Copal Corporation
- Koki Kunii
- G02 - OPTICS
Information Patent Application
Light-guide plate and method for manufacturing the same
- Publication number 20030090887
- Publication date May 15, 2003
- Nidec Copal Corporation
- Junichi Igarashi
- G02 - OPTICS
Information Patent Application
ND filter having composite PVD film of metal and its oxide
- Publication number 20030026014
- Publication date Feb 6, 2003
- Nidec Copal Corporation
- Koki Kunii
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Person

Patents Grantslast 30 patents

ND filter, manufacturing method thereof, and aperture device

ND filter of optical film laminate type with carbon film coating

ND filter and light quantity diaphragming device including the same

ND filter and aperture diaphragm apparatus

Light-guide plate and method for manufacturing the same

ND filter having composite PVD film of metal and its oxide

Patents Applicationslast 30 patents

STATOR, ROTATING ELECTRIC MACHINE, VEHICLE, AND STATOR MANUFACTURIN...

SEGMENT CONDUCTORS, STATOR, ROTATING ELECTRICAL MACHINE, AND VEHICL...

Nd filter and light quantity diaphragming device including the same

ND filter, manufacturing method thereof, and aperture device

ND filter of optical film laminate type with carbon film coating

ND filter and aperture diaphragm apparatus

Light-guide plate and method for manufacturing the same

ND filter having composite PVD film of metal and its oxide