HS

Hitoshi Sumiya

Sumitomo Electric Industries: 70 patents #80 of 21,551Top 1%
SH Sumitomo Electric Hardmetal: 10 patents #44 of 278Top 20%
A. A.L.M.T.: 3 patents #20 of 152Top 15%
Aisin Seiki Kabushiki Kaisha: 1 patents #2,094 of 3,782Top 60%
Overall (All Time): #28,308 of 4,157,543Top 1%
71
Patents All Time

Issued Patents All Time

Showing 51–71 of 71 patents

Patent #TitleCo-InventorsDate
9192899 High-hardness conductive diamond polycrystalline body and method of producing the same 2015-11-24
9061336 Wire drawing die Makoto Yukawa 2015-06-23
8784767 Polycrystalline diamond and method of manufacturing the same Katsuko Yamamoto, Takeshi Sato, Keiko Arimoto 2014-07-22
8226922 High-hardness conductive diamond polycrystalline body and method of producing the same 2012-07-24
7404399 Diamond tool, synthetic single crystal diamond and method of synthesizing single crystal diamond, and diamond jewelry Yutaka Kobayashi, Katsuyuki Kawate, Takeru Nakashima 2008-07-29
6737377 Cutting tool of a cubic boron nitride sintered compact Shinya Uesaka 2004-05-18
6716544 Coated sinter of cubic-system boron nitride Shinya Uesaka 2004-04-06
6129900 Process for the synthesis of diamond Shuichi Satoh, Kazuwo Tsuji, Yasushi Gouda 2000-10-10
6071841 Cubic boron nitride sintered body and method of preparing the same 2000-06-06
6030595 Process for the production of synthetic diamond Shuichi Satoh, Yoshiki Nishibayashi 2000-02-29
5912217 Diamond sintered body and a process for the production of the same, tools and abrasive grains using the same Shuichi Satoh, Takeru Nakashima, Yasuyuki Kanada 1999-06-15
5908503 Low defect density diamond single crystal and a process for the production of the same Naohiro Toda, Shuichi Satoh 1999-06-01
5769176 Diamond sintered compact and a process for the production of the same Shuichi Satoh 1998-06-23
5569921 Infrared optical part and measuring instrument Shuichi Sato, Katsuyuki Kawate, Jiro Katoh 1996-10-29
5340780 Cubic boron nitride sintered compact and method of preparing the compact 1994-08-23
5332629 Boron nitride system including an hBN starting material with a catalyst and a sintered cNB body having a high heat conductivity based on the catalyst Shuichi Sato, Shuji Yazu 1994-07-26
5194070 Process for production of diamond abrasive grains Kazuwo Tsuji 1993-03-16
4859531 Method for bonding a cubic boron nitride sintered compact Kazuwo Tsuji, Yoshiaki Kumazawa, Nobuo Urakawa, Keiichi Satoh 1989-08-22
4845824 Clip-clinching device for a coil-spring unit of a mattress Fujio Ishikawa, Motonobu Oyabu, Hideyuki Fukuda 1989-07-11
4772575 Method of manufacturing sintered compact of cubic boron nitride Nobuhiro Ota, Shuji Yazu 1988-09-20
4699687 Method of synthesizing cubic system boron nitride Shuji Yazu, Junji Degawa 1987-10-13