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Seishiro Yamakawa
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Kadoma, JP
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last 30 patents
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Patent Grant
Glass fiber forming composition, glass fibers obtained from the com...
Patent number
5,407,872
Issue date
Apr 18, 1995
Matsushita Electric Works Ltd.
Kiyotaka Komori
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Substrate for circuit board including the glass fibers as reinforci...
Patent number
5,334,645
Issue date
Aug 2, 1994
Matsushita Electric Works, Ltd.
Kiyotaka Komori
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Glass fiber forming composition, glass fibers obtained from the com...
Patent number
5,284,807
Issue date
Feb 8, 1994
Matsushita Electric Works, Ltd.
Kiyotaka Komori
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Composite dielectric and printed-circuit use substrate utilizing th...
Patent number
5,275,878
Issue date
Jan 4, 1994
Matsushita Electric Works, Ltd.
Seishiro Yamakawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...