Yasuo Iida

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Positive acting resist material comprised of novoloc resin derived...
- Patent number 4,690,882
- Issue date Sep 1, 1987
- NEC Corporation
- Katsumi Tanigaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Semiconductor device having a registration mark for use in an expos...
- Patent number 4,356,223
- Issue date Oct 26, 1982
- Nippon Electric Co., Ltd.
- Yasuo Iida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
X-ray lithography mask and method for manufacturing the same
- Patent number 4,152,601
- Issue date May 1, 1979
- Nippon Telegraph & Telephone Public Corporation
- Toshiki Kadota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY