Keita Takahashi

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spring forming device and forming method therefor
- Patent number 10,052,677
- Issue date Aug 21, 2018
- NHK Spring Co., Ltd.
- Keita Takahashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Helical compression spring and method for manufacturing same
- Patent number 9,752,636
- Issue date Sep 5, 2017
- NHK Spring Co., Ltd.
- Yuitirou Ono
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
HELICAL COMPRESSION SPRING AND METHOD FOR PRODUCING SAME
- Publication number 20200240487
- Publication date Jul 30, 2020
- NHK Spring Co., Ltd.
- Toshiyuki AKANUMA
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
SPRING FORMING DEVICE AND FORMING METHOD THEREFOR
- Publication number 20160243607
- Publication date Aug 25, 2016
- NHK Spring Co., Ltd.
- Keita TAKAHASHI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HELICAL COMPRESSION SPRING AND METHOD FOR MANUFACTURING SAME
- Publication number 20150252863
- Publication date Sep 10, 2015
- NHK Spring Co., Ltd.
- Yuitirou Ono
- C21 - METALLURGY OF IRON