Norikatsu Fujisawa

Follow

Person

Miyagi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of producing magnetic powder and method of producing magneti...
- Patent number 11,830,533
- Issue date Nov 28, 2023
- Sony Corporation
- Natsuki Toyosawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,936,815
- Issue date Aug 10, 1999
- Sony Corporation
- Seiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary magnetic head apparatus with circuitry for driving head and...
- Patent number 5,737,154
- Issue date Apr 7, 1998
- Sony Corporation
- Seiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with glass used to bond together two core halves havi...
- Patent number 5,708,543
- Issue date Jan 13, 1998
- Sony Corporation
- Junichi Honda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,475,551
- Issue date Dec 12, 1995
- Sony Corporation
- Junichi Honda
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF PRODUCING MAGNETIC POWDER AND METHOD OF PRODUCING MAGNETI...
- Publication number 20210027807
- Publication date Jan 28, 2021
- SONY CORPORATION
- Natsuki TOYOSAWA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...