Yumi Yamamoto

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Hiratsuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Catalyst for a fuel cell containing polymer solid electrolyte and m...
- Patent number 6,339,038
- Issue date Jan 15, 2002
- Tanaka Kikinzoku Kogyo K.K.
- Tomoyuki Tada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Anode electrocatalyst for fuel cell and process of preparing same
- Patent number 5,922,487
- Issue date Jul 13, 1999
- Tanaka Kikinzoku Kogyo K.K.
- Masahiro Watanabe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process of preparing solid polymer electrolyte type fuel cell
- Patent number 5,294,232
- Issue date Mar 15, 1994
- Tanaka Kikinzoku Kogyo K.K.
- Koichi Sakairi
- H01 - BASIC ELECTRIC ELEMENTS