KK

Kazuhiko Kurafuchi

HC Hitachi Chemical Company: 10 patents #148 of 1,946Top 8%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
RE Resonac: 4 patents #31 of 474Top 7%
SC Showa Denko Materials Co.: 4 patents #32 of 270Top 15%
RE Ryoden Semiconductor System Engineering: 2 patents #57 of 195Top 30%
Overall (All Time): #190,907 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
12426164 Semiconductor package Masaya TOBA, Takashi Masuko, Kazuyuki MITSUKURA, Shinichiro Abe 2025-09-23
12004305 Wiring board and production method for same Masaya TOBA, Takashi Masuko, Kazuyuki MITSUKURA, Shinichiro Abe 2024-06-04
11990396 Substrate and method for manufacturing the same Kazuyuki MITSUKURA, Masaya TOBA, Yoshinori Ejiri 2024-05-21
11979990 Wiring board and method for manufacturing the same Masaya TOBA, Takashi Masuko, Kazuyuki MITSUKURA, Shinichiro Abe 2024-05-07
11562951 Organic interposer and method for manufacturing organic interposer Kazuyuki MITSUKURA, Masaya TOBA, Yoshinori Ejiri 2023-01-24
11532588 Copper paste for pressureless bonding, bonded body and semiconductor device Hideo Nakako, Yoshinori Ejiri, Dai Ishikawa, Chie Sugama, Yuki KAWANA 2022-12-20
11040416 Copper paste for joining, method for manufacturing joined body, and method for manufacturing semiconductor device Dai Ishikawa, Yuki KAWANA, Chie Sugama, Hideo Nakako, Yoshinori Ejiri 2021-06-22
10930612 Copper paste for pressureless bonding, bonded body and semiconductor device Hideo Nakako, Yoshinori Ejiri, Dai Ishikawa, Chie Sugama, Yuki KAWANA 2021-02-23
10756008 Organic interposer and method for manufacturing organic interposer Kazuyuki MITSUKURA, Masaya TOBA, Yoshinori Ejiri 2020-08-25
10748865 Copper paste for joining, method for manufacturing joined body, and method for manufacturing semiconductor device Yuki KAWANA, Hideo Nakako, Dai Ishikawa, Chie Sugama, Yoshinori Ejiri 2020-08-18
10575402 Resin composition, wiring layer laminate for semiconductor, and semiconductor device Shinichiro Abe, Tomonori Minegishi, Kazuyuki MITSUKURA, Masaya TOBA 2020-02-25
10566304 Assembly and semiconductor device Hideo Nakako, Yoshinori Ejiri, Dai Ishikawa, Chie Sugama, Yuki KAWANA 2020-02-18
10388608 Semiconductor device and method for manufacturing same Kazuyuki MITSUKURA, Masaya TOBA, Kenichi IWASHITA, Kohsuke URASHIMA 2019-08-20
10363608 Copper paste for joining, method for producing joined body, and method for producing semiconductor device Yuki KAWANA, Yoshinori Ejiri, Hideo Nakako, Chie Sugama, Dai Ishikawa 2019-07-30
10034384 Structure containing conductor circuit, method for manufacturing same, and heat-curable resin composition Daisuke Fujimoto, Kunpei Yamada, Toshimasa Nagoshi 2018-07-24
9661763 Structure containing conductor circuit, method for manufacturing same, and heat-curable resin composition Daisuke Fujimoto, Kunpei Yamada, Toshimasa Nagoshi 2017-05-23
9075307 Photosensitive resin composition for protective film of printed wiring board for semiconductor package Toshizumi Yoshino, Hideyuki Katagi, Masaya Ookawa, Yoshiaki Fuse 2015-07-07
6774501 Resin-sealed semiconductor device, and die bonding material and sealing material for use therein Naoya Suzuki, Masaaki Yasuda, Tatsuo Kawata, Hiroyuki Sakai, Masao Kawasumi 2004-08-10
6256875 Method for manufacturing semiconductor device Masaki Watanabe, Akiyoshi Sawai, Yoshikazu Narutaki, Tomoaki Hashimoto, Masatoshi Yasunaga +3 more 2001-07-10
6005289 Package for semiconductor device laminated printed circuit boards Masaki Watanabe, Akiyoshi Sawai, Yoshikazu Narutaki, Tomoaki Hashimoto, Masatoshi Yasunaga +3 more 1999-12-21
5672965 Evaluation board for evaluating electrical characteristics of an IC package Hiroshi Seki, Mitsuyuki Takada 1997-09-30
5410182 High density semiconductor device having inclined chip mounting Katsunori Ochi, Yoshiyuki Ishimaru, Kenji Kimura 1995-04-25