Toshiyuki Iwasawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ink jet recording apparatus
- Patent number 4,975,718
- Issue date Dec 4, 1990
- Matsushita Electric Industrial Co., Ltd.
- Kenji Akami
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet recording apparatus with density control function
- Patent number 4,908,635
- Issue date Mar 13, 1990
- Matsushita Electric Industrial Co., Ltd.
- Toshiyuki Iwasawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet recording apparatus with an electrode disposed at writing p...
- Patent number 4,829,325
- Issue date May 9, 1989
- Matsushita Electric Industrial Co., Ltd.
- Toshiyuki Iwasawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
MOS FET drive circuit providing protection against transient voltag...
- Patent number 4,825,102
- Issue date Apr 25, 1989
- Matsushita Electric Industrial Co., Ltd.
- Toshiyuki Iwasawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method for operation of an ink jet printing head
- Patent number 4,684,957
- Issue date Aug 4, 1987
- Matsushita Electric Industrial Co., Ltd.
- Masayoshi Miura
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS