Hidemi Takayama

Person

Tochigi-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Diffractive optical element and image pickup optical system
- Patent number 9,400,396
- Issue date Jul 26, 2016
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Grant
Diffractive optical element having high diffraction efficiency at p...
- Patent number 9,335,557
- Issue date May 10, 2016
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Grant
Optical scanning apparatus and image forming apparatus using the same
- Patent number 7,224,503
- Issue date May 29, 2007
- Canon Kabushiki Kaisha
- Hidemi Takayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical scanning apparatus and image forming apparatus using the same
- Patent number 7,031,039
- Issue date Apr 18, 2006
- Canon Kabushiki Kaisha
- Hidemi Takayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical scanning apparatus and image forming apparatus using the same
- Patent number 7,016,092
- Issue date Mar 21, 2006
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Grant
Optical scanning apparatus
- Patent number 6,987,594
- Issue date Jan 17, 2006
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Grant
Optical scanning apparatus, multi-beam optical scanning apparatus,...
- Patent number 6,519,070
- Issue date Feb 11, 2003
- Canon Kabushiki Kaisha
- Hidemi Takayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus with laser emission control
- Patent number 6,504,558
- Issue date Jan 7, 2003
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical scanning apparatus and image-forming apparatus
- Patent number 6,501,586
- Issue date Dec 31, 2002
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Grant
Optical scanning apparatus and image forming apparatus using it
- Patent number 6,459,520
- Issue date Oct 1, 2002
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image reading apparatus and adjusting method for the same
- Patent number 6,239,885
- Issue date May 29, 2001
- Canon Kabushiki Kaisha
- Hiroshi Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Zoom lens of retrofocus type
- Patent number 6,081,389
- Issue date Jun 27, 2000
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Grant
Image forming apparatus
- Patent number 5,896,472
- Issue date Apr 20, 1999
- Canon Kabushiki Kaisha
- Hidemi Takayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DIFFRACTIVE OPTICAL ELEMENT AND IMAGE PICKUP OPTICAL SYSTEM
- Publication number 20120120494
- Publication date May 17, 2012
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Application
DIFFRACTIVE OPTICAL ELEMENT HAVING HIGH DIFFRACTION EFFICIENCY AT P...
- Publication number 20120050868
- Publication date Mar 1, 2012
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Application
DIFFRACTIVE OPTICAL ELEMENT, OPTICAL SYSTEM AND OPTICAL APPARATUS
- Publication number 20100134889
- Publication date Jun 3, 2010
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS
Information Patent Application
Optical scanning apparatus and image forming apparatus using the same
- Publication number 20060055995
- Publication date Mar 16, 2006
- Canon Kabushiki Kaisha
- Hidemi Takayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Optical scanning apparatus and image forming apparatus using the same
- Publication number 20050259307
- Publication date Nov 24, 2005
- Hidemi Takayama
- G02 - OPTICS
Information Patent Application
Optical scanning apparatus and image forming apparatus using the same
- Publication number 20050024481
- Publication date Feb 3, 2005
- Canon Kabushiki Kaisha
- Hidemi Takayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Optical scanning apparatus
- Publication number 20040156084
- Publication date Aug 12, 2004
- Canon Kabushiki Kaisha
- Hidemi Takayama
- G02 - OPTICS

Hidemi Takayama

Person

Patents Grantslast 30 patents

Diffractive optical element and image pickup optical system

Diffractive optical element having high diffraction efficiency at p...

Optical scanning apparatus and image forming apparatus using the same

Optical scanning apparatus and image forming apparatus using the same

Optical scanning apparatus and image forming apparatus using the same

Optical scanning apparatus

Optical scanning apparatus, multi-beam optical scanning apparatus,...

Image forming apparatus with laser emission control

Optical scanning apparatus and image-forming apparatus

Optical scanning apparatus and image forming apparatus using it

Image reading apparatus and adjusting method for the same

Zoom lens of retrofocus type

Image forming apparatus

Patents Applicationslast 30 patents

DIFFRACTIVE OPTICAL ELEMENT AND IMAGE PICKUP OPTICAL SYSTEM

DIFFRACTIVE OPTICAL ELEMENT HAVING HIGH DIFFRACTION EFFICIENCY AT P...

DIFFRACTIVE OPTICAL ELEMENT, OPTICAL SYSTEM AND OPTICAL APPARATUS

Optical scanning apparatus and image forming apparatus using the same

Optical scanning apparatus and image forming apparatus using the same

Optical scanning apparatus and image forming apparatus using the same

Optical scanning apparatus