Takeaki Kumagai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical element, method for manufacturing the same, and optical app...
- Patent number 11,187,829
- Issue date Nov 30, 2021
- Canon Kabushiki Kaisha
- Shuhei Yamamoto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Organic-inorganic composite molded product and optical element
- Patent number 9,376,553
- Issue date Jun 28, 2016
- Canon Kabushiki Kaisha
- Takeaki Kumagai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Molded article and method of producing the same
- Patent number 9,353,247
- Issue date May 31, 2016
- Canon Kabushiki Kaisha
- Takeaki Kumagai
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL ELEMENT, OPTICAL DEVICE, AND IMAGE PICKUP APPARATUS
- Publication number 20230168463
- Publication date Jun 1, 2023
- Canon Kabushiki Kaisha
- YASUHIRO TANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTROPHOTOGRAPHIC BELT AND ELECTROPHOTOGRAPHIC IMAGE-FORMING APPA...
- Publication number 20230152720
- Publication date May 18, 2023
- Canon Kabushiki Kaisha
- Akira Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
OPTICAL ELEMENT, METHOD FOR MANUFACTURING THE SAME, AND OPTICAL APP...
- Publication number 20190107648
- Publication date Apr 11, 2019
- Canon Kabushiki Kaisha
- Shuhei Yamamoto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MOLDED ARTICLE AND METHOD OF PRODUCING THE SAME
- Publication number 20150111988
- Publication date Apr 23, 2015
- Takeaki Kumagai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ORGANIC-INORGANIC COMPOSITE MOLDED PRODUCT AND OPTICAL ELEMENT
- Publication number 20140142229
- Publication date May 22, 2014
- Canon Kabushiki Kaisha
- Takeaki Kumagai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
ORGANIC-INORGANIC COMPOSITE MOLDED PRODUCT AND OPTICAL ELEMENT
- Publication number 20140121289
- Publication date May 1, 2014
- Canon Kabushiki Kaisha
- Shigeo Kiso
- G02 - OPTICS
Information Patent Application
OPTICAL MATERIAL, OPTICAL ELEMENT, AND METHOD FOR MAKING OPTICAL EL...
- Publication number 20090148693
- Publication date Jun 11, 2009
- Canon Kabushiki Kaisha
- Takeaki Kumagai
- G02 - OPTICS

Takeaki Kumagai

Person

Patents Grantslast 30 patents

Optical element, method for manufacturing the same, and optical app...

Organic-inorganic composite molded product and optical element

Molded article and method of producing the same

Patents Applicationslast 30 patents

OPTICAL ELEMENT, OPTICAL DEVICE, AND IMAGE PICKUP APPARATUS

ELECTROPHOTOGRAPHIC BELT AND ELECTROPHOTOGRAPHIC IMAGE-FORMING APPA...

OPTICAL ELEMENT, METHOD FOR MANUFACTURING THE SAME, AND OPTICAL APP...

MOLDED ARTICLE AND METHOD OF PRODUCING THE SAME

ORGANIC-INORGANIC COMPOSITE MOLDED PRODUCT AND OPTICAL ELEMENT

ORGANIC-INORGANIC COMPOSITE MOLDED PRODUCT AND OPTICAL ELEMENT

OPTICAL MATERIAL, OPTICAL ELEMENT, AND METHOD FOR MAKING OPTICAL EL...