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Yoshitaka Kitahara
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
B-1,3-1,6-glucan powder, glucan-containing composition, method for...
Patent number
11,384,159
Issue date
Jul 12, 2022
Mitsubishi Gas Chemical Company, Inc.
Yoshitaka Kitahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method of manufacturing optical member, method of manufacturing pla...
Patent number
8,377,345
Issue date
Feb 19, 2013
Hoya Corporation
Masanori Kadota
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for producing optical member
Patent number
7,682,531
Issue date
Mar 23, 2010
Hoya Corporation
Masanori Kadota
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyisocyanate compounds, process for producing the same, and optic...
Patent number
6,596,836
Issue date
Jul 22, 2003
Hoya Corporation
Yoshitaka Kitahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyisocyanate compounds, process for producing the same, and optic...
Patent number
6,489,430
Issue date
Dec 3, 2002
Hoya Corporation
Yoshitaka Kitahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyisocyanate compounds, process for producing the same, and optic...
Patent number
6,455,729
Issue date
Sep 24, 2002
Hoya Corporation
Yoshitaka Kitahara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyisocyanate compounds, process for producing the same, and optic...
Patent number
6,313,316
Issue date
Nov 6, 2001
Hoya Corporation
Yoshitaka Kitahara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyisocyanate compound, process for producing the same and optical...
Patent number
6,194,603
Issue date
Feb 27, 2001
Hoya Corporation
Yoshitaka Kitahara
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
?-1,3-1,6-GLUCAN POWDER, GLUCAN-CONTAINING COMPOSITION, METHOD FOR...
Publication number
20200231709
Publication date
Jul 23, 2020
Mitsubishi Gas Chemical Company, Inc.
Yoshitaka KITAHARA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
TRANSPARENT MOLDED ARTICLE, OPTICAL MEMBER, PLASTIC LENS, AND METHO...
Publication number
20150259509
Publication date
Sep 17, 2015
HOYA CORPORATION
Yoshitaka KITAHARA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
POLYOL COMPOUND, TRANSPARENT MOLDED ARTICLE AND METHOD OF MANUFACTU...
Publication number
20100234552
Publication date
Sep 16, 2010
HOYA CORPORATION
Yoshitaka Kitahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD OF MANUFACTURING OPTICAL MEMBER, METHOD OF MANUFACTURING PLA...
Publication number
20100127411
Publication date
May 27, 2010
HOYA CORPORATION
Masanori Kadota
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
PROCESS OF PRODUCING PLASTIC LENS AND PLASTIC LENS
Publication number
20100093970
Publication date
Apr 15, 2010
Hoya Corporation
Masahisa Kosaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polyol compound, transparent molded article and method of manufactu...
Publication number
20060155093
Publication date
Jul 13, 2006
HOYA CORPORATION
Yoshitaka Kitahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Transparent molded article
Publication number
20060149018
Publication date
Jul 6, 2006
HOYA CORPORATION
Yoshitaka Kitahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for producing optical member, process for producing plastic...
Publication number
20050200033
Publication date
Sep 15, 2005
HOYA CORPORATION
Masanori Kadota
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Process of producing plastic lens and plastic lens
Publication number
20050062932
Publication date
Mar 24, 2005
Hoya Corporation
Masahisa Kosaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Transparent molded objects, optical member, plastic lens, and proce...
Publication number
20040151915
Publication date
Aug 5, 2004
Yoshitaka Kitahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polyisocyanate compounds, process for producing the same, and optic...
Publication number
20020151669
Publication date
Oct 17, 2002
Yoshitaka Kitahara
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Polyisocyanate compounds, process for producing the same, and optic...
Publication number
20020107353
Publication date
Aug 8, 2002
Yoshitaka Kitahara
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Polyisocyanate compounds, process for producing the same, and optic...
Publication number
20020103324
Publication date
Aug 1, 2002
Yoshitaka Kitahara
C07 - ORGANIC CHEMISTRY