Hiroyuki Hasegawa

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic head having grooves to enhance contact with magnetic recor...
- Patent number 6,590,741
- Issue date Jul 8, 2003
- Matsushita Electric Industrial Co., Ltd.
- Kenji Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
MR head with MR element and reinforcing body mounted via non-organi...
- Patent number 6,493,193
- Issue date Dec 10, 2002
- Matsushita Electric Industrial Co., Ltd.
- Yoshiyasu Honma
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 6,150,044
- Issue date Nov 21, 2000
- Matsushita Electric Industrial Co., Ltd.
- Hiroyuki Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing apparatus
- Patent number 6,088,178
- Issue date Jul 11, 2000
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing apparatus having ring-type magne...
- Patent number 5,912,783
- Issue date Jun 15, 1999
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Mr head and method for producing the same, and magnetic recording/r...
- Publication number 20020008944
- Publication date Jan 24, 2002
- MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- Yoshiyasu Honma
- G11 - INFORMATION STORAGE