Masakazu Katumaru

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Arlington Heights, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Combined oil ring
- Patent number 7,077,402
- Issue date Jul 18, 2006
- Teikoku Piston Ring Co., Ltd.
- Masakazu Katumaru
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Combined oil ring
- Publication number 20040119242
- Publication date Jun 24, 2004
- Teikoku Piston Ring Co., Ltd.
- Masakazu Katumaru
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...