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Hirokazu Yanagihara
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Shizuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Vehicle-lamp
Patent number
6,074,079
Issue date
Jun 13, 2000
Koito Manufacturing Co., Ltd.
Hirokazu Yanagihara
F21 - LIGHTING
Information
Patent Grant
Apparatus for making a synthetic resin layered lens for a vehicle l...
Patent number
5,922,369
Issue date
Jul 13, 1999
Koito Manufacturing Co., Ltd.
Hirokazu Yanagihara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Lens structure for lamps
Patent number
5,836,674
Issue date
Nov 17, 1998
Koito Manufacturing Co., Ltd.
Norihiro Nishitani
F21 - LIGHTING
Information
Patent Grant
Method of molding a synthetic resin layered lens for a vehicle head...
Patent number
5,756,013
Issue date
May 26, 1998
Koito Manufacturing Co., Ltd.
Hirokazu Yanagihara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for molding lamp body automotive lamps and lamp body thereof...
Patent number
5,743,630
Issue date
Apr 28, 1998
Koito Manufacturing Co., Ltd.
Hirokazu Yanagihara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Synthetic resin layered lens for a vehicle lighting device, method...
Patent number
5,721,039
Issue date
Feb 24, 1998
Koito Manufacturing Co., Ltd.
Hirokazu Yanagihara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Resin-molded lens having no sink marks and process for producing same
Patent number
5,642,228
Issue date
Jun 24, 1997
Koito Manufacturing Co., Ltd.
Shiro Takezawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Vehicular lamps, and apparatus and method for molding the same
Patent number
5,609,407
Issue date
Mar 11, 1997
Koito Manufacturing Co., Ltd.
Hirokazu Yanagihara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL