AY

Akira Yamakawa

Sumitomo Electric Industries: 94 patents #26 of 21,551Top 1%
UN Unknown: 6 patents #2,010 of 83,584Top 3%
DA Daicel: 5 patents #63 of 523Top 15%
JI Japan Atomic Energy Research Institute: 1 patents #188 of 609Top 35%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
📍 Itami, JP: #5 of 1,436 inventorsTop 1%
Overall (All Time): #14,528 of 4,157,543Top 1%
100
Patents All Time

Issued Patents All Time

Showing 1–25 of 100 patents

Patent #TitleCo-InventorsDate
12091588 Curable composition for adhesive agents, adhesive sheet, cured article, laminate, and device Naoko Tsuji 2024-09-17
11791284 Semiconductor device manufacturing method Naoko Tsuji, Katsuhiko Sumita 2023-10-17
11149118 Insulating film forming composition, insulating film, and semiconductor device provided with insulating film Hiroto Miyake, Naoko Tsuji 2021-10-19
11066586 Curable composition, adhesive sheet, cured product, laminate, method for producing adhesive sheet, and device Hiroki Tanaka, Naoko Tsuji 2021-07-20
10619047 Curable composition Naoko Tsuji, Hiroki Tanaka, Akihiro Shibamoto, Nobuhiko Harada 2020-04-14
6458298 Process for molding ceramics Tomoyuki Awazu, Yasushi Tsuzuki 2002-10-01
6447923 Metallized silicon nitride ceramic and fabricating process thereof as well as metallizing composite for the process 2002-09-10
6410468 Si3N4 ceramic, Si-base composition for production thereof and processes for producing these Seiji Nakahata 2002-06-25
6315843 Method of manufacturing a sliding component Takashi Matsuura 2001-11-13
6284690 Si3N4 ceramic, Si-base composition for production thereof and processes for producing these Seiji Nakahata 2001-09-04
6143677 Silicon nitride sinter having high thermal conductivity and process for preparing the same Michimasa Miyanaga, Seiji Nakahata 2000-11-07
6001759 Silicon nitride sintered body, method of preparing the same and nitrided compact Michimasa Miyanaga, Seiji Nakahata 1999-12-14
5961907 Process for producing silicon nitride sliding member Masamichi Yamagiwa, Takao Nishioka, Takashi Matsuura 1999-10-05
5904993 Joint body of aluminum and silicon nitride and method of preparing the same Hisao Takeuchi, Koichi Sogabe, Takao Nishioka, Takashi Matsuura 1999-05-18
5879078 Device for producing ceramic sintered body Yasushi Tsuzuki, Jin-Joo Matsui 1999-03-09
5858523 Porous ceramic film and process for producing the same Chihiro Kawai, Takahiro Matsuura 1999-01-12
5846460 Method of preparing silicon nitride porous body Takahiro Matsuura, Chihiro Kawai 1998-12-08
5827472 Process for the production of silicon nitride sintered body Masashi Yoshimura, Takeshi Satoh, Akira Yamaguchi 1998-10-27
5809842 Ceramic sliding component Masamichi Yamagiwa, Takao Nishioka, Hisao Takeuchi 1998-09-22
5783314 Sliding component and production method thereof Masamichi Yamagiwa, Takao Nishioka, Hisao Takeuchi 1998-07-21
5780374 High-strength porous silicon nitride body and process for producing the same Chihiro Kawai, Takahiro Matsuura 1998-07-14
5776600 Slide member and method of manufacturing the same Tetsuya Katayama, Kaoru Murabe, Osamu Komura, Chihiro Kawai, Kenji Matsunuma +3 more 1998-07-07
5770322 Ceramic sliding component Takao Nishioka, Masamichi Yamagiwa, Takeshi Satoh, Hisao Takeuchi 1998-06-23
5767026 Silicon nitride ceramic and process for forming the same Naoki Kondoh, Fumihiro Wakai, Yoshihiro Obata, Takao Nishioka, Masashi Yoshimura 1998-06-16
5759460 Ceramic porous bodies and method of producing the same Koichi Niihara 1998-06-02