Takehiko Kitamura

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Disc molding die
- Patent number 5,693,348
- Issue date Dec 2, 1997
- Seikoh Giken Co., Ltd.
- Yasuyoshi Sakamoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mold having opposed offset cooling channels
- Patent number 5,501,592
- Issue date Mar 26, 1996
- Sumitomo Heavy Industries, Ltd.
- Takehiko Kitamura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Injection compression molding method for compact discs or the like
- Patent number 5,417,899
- Issue date May 23, 1995
- Sumitomo Heavy Industries, Ltd.
- Takehiko Kitamura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for the preparation of substrates for optical disk
- Patent number 5,354,517
- Issue date Oct 11, 1994
- Mitsui Petrochemical Industries, Ltd.
- Kazuyuki Yamasaki
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Injection mold capable of shearing film gate within mold
- Patent number 5,098,281
- Issue date Mar 24, 1992
- Sumitomo Heavy Industries, Ltd.
- Takehiko Kitamura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Injection molding die apparatus for use in the production of substr...
- Patent number 5,018,962
- Issue date May 28, 1991
- Sumitomo Heavy Industries, Ltd.
- Takehiko Kitamura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mold for molding optical disk base
- Patent number 4,979,891
- Issue date Dec 25, 1990
- Sumitomo Heavy Industries, Ltd.
- Takehiko Kitamura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Takehiko Kitamura

Person

Patents Grantslast 30 patents

Disc molding die

Mold having opposed offset cooling channels

Injection compression molding method for compact discs or the like

Process for the preparation of substrates for optical disk

Injection mold capable of shearing film gate within mold

Injection molding die apparatus for use in the production of substr...

Mold for molding optical disk base