Takashi Yoshioka

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Marugame, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming a protective chemical layer on copper and copper...
- Patent number 5,560,785
- Issue date Oct 1, 1996
- Shikoku Chemicals Corporation
- Hirohiko Hirao
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Agent for treating surfaces of copper and copper alloys
- Patent number 5,498,301
- Issue date Mar 12, 1996
- Shikoku Chemicals Corporation
- Hirohiko Hirao
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for surface treatment of copper and copper alloy
- Patent number 5,173,130
- Issue date Dec 22, 1992
- Shikoku Chemicals Corporation
- Masashi Kinoshita
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Positively chargeable toner
- Patent number 4,983,485
- Issue date Jan 8, 1991
- Shikoku Chemicals Corporation
- Takeshi Nagaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY