Shigeru Yoshizawa

Person

Tokorozawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Series resonant drive circuit for magnetic bubble memory
- Patent number 4,430,729
- Issue date Feb 7, 1984
- Hitachi, Ltd.
- Takashi Toyooka
- G11 - INFORMATION STORAGE
Information Patent Grant
Series resonance drive circuit for magnetic bubble memory
- Patent number 4,379,341
- Issue date Apr 5, 1983
- Hitachi, Ltd.
- Takashi Toyooka
- G11 - INFORMATION STORAGE
Information Patent Grant
Timing signal generating circuit
- Patent number 4,291,241
- Issue date Sep 22, 1981
- Hitachi, Ltd.
- Koichi Mayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Memory device with circulating storage loops
- Patent number 4,290,117
- Issue date Sep 15, 1981
- Hitachi, Ltd.
- Mamoru Sugie
- G11 - INFORMATION STORAGE
Information Patent Grant
Drive circuit for magnetic bubble device
- Patent number 4,247,911
- Issue date Jan 27, 1981
- Hitachi, Ltd.
- Shigeru Yoshizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for testing a magnetic bubble memory
- Patent number 4,233,668
- Issue date Nov 11, 1980
- Nippon Telegraph and Telephone Public Corporation
- Nakahiko Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Shift register type memory device consisting of a plurality of memo...
- Patent number 4,168,534
- Issue date Sep 18, 1979
- Hitachi, Ltd.
- Shigeru Yoshizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Field access magnetic bubble memory device
- Patent number 4,145,750
- Issue date Mar 20, 1979
- Hitachi, Ltd.
- Shigeru Yoshizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Shift register type memory
- Patent number 4,133,043
- Issue date Jan 2, 1979
- Hitachi, Ltd.
- Minoru Hiroshima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic bubble information writing device
- Patent number 4,120,042
- Issue date Oct 10, 1978
- Hitachi, Ltd.
- Masuo Kasai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic bubble module
- Patent number 4,101,970
- Issue date Jul 18, 1978
- President of Kogyo Gijutsuin
- Nobuo Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic bubble information writing device
- Patent number 4,101,971
- Issue date Jul 18, 1978
- President of Kogyo Gijutsuin
- Minoru Hiroshima
- G11 - INFORMATION STORAGE

Shigeru Yoshizawa

Person

Patents Grantslast 30 patents

Series resonant drive circuit for magnetic bubble memory

Series resonance drive circuit for magnetic bubble memory

Timing signal generating circuit

Memory device with circulating storage loops

Drive circuit for magnetic bubble device

Method and apparatus for testing a magnetic bubble memory

Shift register type memory device consisting of a plurality of memo...

Field access magnetic bubble memory device

Shift register type memory

Magnetic bubble information writing device

Magnetic bubble module

Magnetic bubble information writing device