Masahiko Hamada

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Niwa-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fastener
- Patent number 11,639,735
- Issue date May 2, 2023
- Aoyama Seisakusho Co., Ltd.
- Masahiko Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Self-tapping screw for soft metals
- Patent number 9,518,597
- Issue date Dec 13, 2016
- Aoyama Seisakusho Co., Ltd.
- Masahiko Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bolt and nut
- Patent number 6,796,761
- Issue date Sep 28, 2004
- Aoyama Seisakusho Co., Ltd.
- Hiromichi Mizuno
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
FASTENER
- Publication number 20200408239
- Publication date Dec 31, 2020
- Aoyama Seisakusho CO.,LTD.
- Masahiko HAMADA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SELF-TAPPING SCREW FOR SOFT METALS
- Publication number 20160131171
- Publication date May 12, 2016
- Aoyama Seisakusho Co., Ltd.
- Masahiko HAMADA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Tapping screw
- Publication number 20060039775
- Publication date Feb 23, 2006
- Hiromichi Mizuno
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Bolt and nut
- Publication number 20030059275
- Publication date Mar 27, 2003
- Aoyama Seisakusho Co., Ltd.
- Hiromichi Mizuno
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Threaded fastener and method of clamping using the same
- Publication number 20020182030
- Publication date Dec 5, 2002
- Aoyama Seisakusho Co., Ltd.
- Masahiko Hamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...