Yoshiyuki Koizumi

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Coupling structure for tube
- Patent number 6,435,567
- Issue date Aug 20, 2002
- Totaku Industries, Inc.
- Yasuhiro Kikumori
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Bell mouth and method for manufacturing box to be buried under ground
- Publication number 20030029987
- Publication date Feb 13, 2003
- Totaku Industries, Inc.
- Yasuhiro Kikumori
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Coupling structure for tube
- Publication number 20010008342
- Publication date Jul 19, 2001
- Yasuhiro Kikumori
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...