Yasuyuki OTSUKA

Follow

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Die-pressing punch capable of adjusting initial load of coil spring...
- Patent number 10,471,491
- Issue date Nov 12, 2019
- AMADA HOLDINGS., LTD.
- Yasuyuki Otsuka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Die-pressing die having dust collection passage at peripheral edge...
- Patent number 10,471,492
- Issue date Nov 12, 2019
- AMADA HOLDINGS CO., LTD.
- Yasuyuki Otsuka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
DIE-PRESSING PUNCH CAPABLE OF ADJUSTING INITIAL LOAD OF COIL SPRING...
- Publication number 20190168276
- Publication date Jun 6, 2019
- AMADA HOLDINGS CO., LTD.
- Yasuyuki OTSUKA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
DIE-PRESSING DIE HAVING DUST COLLECTION PASSAGE AT PERIPHERAL EDGE...
- Publication number 20190160508
- Publication date May 30, 2019
- AMADA HOLDINGS CO., LTD.
- Yasuyuki OTSUKA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR