Chieko HATASHITA

Person

Isehara-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Plastic optical element and optical scanner and imaging forming dev...
- Patent number 9,547,152
- Issue date Jan 17, 2017
- Ricoh Company, Ltd.
- Chieko Hatashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical element, mold, and optical device
- Patent number 9,500,778
- Issue date Nov 22, 2016
- Ricoh Company, Ltd.
- Chieko Hatashita
- G02 - OPTICS
Information Patent Grant
Optical element, light diffusing element, and image display apparatus
- Patent number 9,036,261
- Issue date May 19, 2015
- Ricoh Company, Ltd.
- Chieko Hatashita
- F21 - LIGHTING
Information Patent Grant
Optical scanning device, image forming apparatus, scanning lens, an...
- Patent number 8,743,444
- Issue date Jun 3, 2014
- Ricoh Company, Limited
- Naoki Miyatake
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
PLASTIC OPTICAL ELEMENT AND OPTICAL SCANNER AND IMAGING FORMING DEV...
- Publication number 20160320591
- Publication date Nov 3, 2016
- Chieko HATASHITA
- G02 - OPTICS
Information Patent Application
PLASTIC OPTICAL ELEMENT AND OPTICAL SCANNER AND IMAGING FORMING DEV...
- Publication number 20150226938
- Publication date Aug 13, 2015
- Chieko HATASHITA
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT, MOLD, AND OPTICAL DEVICE
- Publication number 20140211302
- Publication date Jul 31, 2014
- RICOH COMPANY, LTD.
- Chieko HATASHITA
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT, LIGHT DIFFUSING ELEMENT, AND IMAGE DISPLAY APPARATUS
- Publication number 20140071026
- Publication date Mar 13, 2014
- Chieko HATASHITA
- G02 - OPTICS
Information Patent Application
PLASTIC OPTICAL ELEMENT AND OPTICAL SCANNER AND IMAGING FORMING DEV...
- Publication number 20130070324
- Publication date Mar 21, 2013
- Chieko Hatashita
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, SCANNING LENS, AN...
- Publication number 20120236380
- Publication date Sep 20, 2012
- Naoki MIYATAKE
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
RESIN CASTING MOLD, MOLDED RESIN PRODUCT, OPTICAL ELEMENT, OPTICAL...
- Publication number 20120063811
- Publication date Mar 15, 2012
- Takamichi Ohhashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Chieko HATASHITA

Person

Patents Grantslast 30 patents

Plastic optical element and optical scanner and imaging forming dev...

Optical element, mold, and optical device

Optical element, light diffusing element, and image display apparatus

Optical scanning device, image forming apparatus, scanning lens, an...

Patents Applicationslast 30 patents

PLASTIC OPTICAL ELEMENT AND OPTICAL SCANNER AND IMAGING FORMING DEV...

PLASTIC OPTICAL ELEMENT AND OPTICAL SCANNER AND IMAGING FORMING DEV...

OPTICAL ELEMENT, MOLD, AND OPTICAL DEVICE

OPTICAL ELEMENT, LIGHT DIFFUSING ELEMENT, AND IMAGE DISPLAY APPARATUS

PLASTIC OPTICAL ELEMENT AND OPTICAL SCANNER AND IMAGING FORMING DEV...

OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, SCANNING LENS, AN...

RESIN CASTING MOLD, MOLDED RESIN PRODUCT, OPTICAL ELEMENT, OPTICAL...