Seiki Shimazu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for making a plurality of optical record disc subtrates
- Patent number 5,648,105
- Issue date Jul 15, 1997
- TDK Corporation
- Seiki Shimazu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of making a plurality of optical record disc substrates
- Patent number 5,458,821
- Issue date Oct 17, 1995
- TDK Corporation
- Seiki Shimazu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Tape cover of magnetic tape cassette and process for preparing tape...
- Patent number 4,382,523
- Issue date May 10, 1983
- TDK Electronics Co., Ltd.
- Masaoki Sekine
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Tape cover of magnetic tape cassette and process for preparing tape...
- Patent number 4,382,522
- Issue date May 10, 1983
- TDK Electronics Co., Ltd.
- Seiki Shimazu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL