Keishi AKIYAMA

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Tokyo, JP

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Patents Applicationslast 30 patents

Information Patent Application
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- Publication number 20240361683
- Publication date Oct 31, 2024
- HOYA CORPORATION
- Hiroaki SHISHIDO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
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- Publication number 20230194973
- Publication date Jun 22, 2023
- HOYA CORPORATION
- Osamu NOZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MASK BLANK, TRANSFER MASK, AND METHOD FOR MANUFACTURING SEMICONDUCT...
- Publication number 20230097280
- Publication date Mar 30, 2023
- HOYA CORPORATION
- Osamu NOZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MASK BLANK, TRANSFER MASK, AND SEMICONDUCTOR-DEVICE MANUFACTURING M...
- Publication number 20220043335
- Publication date Feb 10, 2022
- HOYA CORPORATION
- Ryo OHKUBO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
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- Publication number 20220035235
- Publication date Feb 3, 2022
- HOYA CORPORATION
- Ryo OHKUBO
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...