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USPTO Patent Rankings Data through Dec 31, 2025
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Keisuke Funatsu — 15 Patents

Hitachi: 14 patents #2,892 of 28,497Top 15%
HEHitachi Vlsi Engineering: 11 patents #38 of 666Top 6%
RTRenesas Technology: 1 patents #1,991 of 3,337Top 60%
Wenatchee, WA: #26 of 245 inventorsTop 15%
Washington: #6,706 of 76,902 inventorsTop 9%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Keisuke Funatsu has been granted 15 US patents while listed as an inventor at Hitachi. The first was granted in 1993 and the most recent in May 2005. Keisuke Funatsu ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Keisuke Funatsu in Wenatchee, WA, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6894334 Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 2005-05-17 $82,000
6734104 Method of manufacturing a semiconductor device and a semiconductor device Kazusato Hara, Toshinori Imai, Junji Noguchi, Naohumi Ohashi 2004-05-11
6548847 SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE HAVING A FIRST WIRING STRIP EXPOSED THROUGH A CONNECTING HOLE, A TRANSITION-METAL FILM IN THE CONNECTING HOLE AND AN ALUMINUM WIRING STRIP THEREOVER, AND A TRANSITION-METAL NITRIDE FILM BETWEEN THE ALUMINUM WIRING STRIP AND THE TRANSITION-METAL FILM Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 2003-04-15 $98,000
6495466 Method of manufacturing a semiconductor device and a semiconductor device Kazusato Hara, Toshinori Imai, Junji Noguchi, Naohumi Ohashi 2002-12-17 $92,000
6342412 Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 2002-01-29 $286,000
6169324 Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 2001-01-02 $569,000
6127255 Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 2000-10-03 $928,000
5811316 Method of forming teos oxide and silicon nitride passivation layer on aluminum wiring Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 1998-09-22 $131,000
5780882 Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 1998-07-14 $166,000
5739589 Semiconductor integrated circuit device process for fabricating the same and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 1998-04-14 $140,000
5557147 Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 1996-09-17 $76,000
5503708 Method of and apparatus for removing an organic film Kootaroo Koizumi, Sukeyoshi Tsunekawa, Kenichi Kawasumi, Takeshi Kimura 1996-04-02 $98,000
5478401 Apparatus and method for surface treatment Sukeyoshi Tsunekawa, Kenichi Kawasumi, Akio Inada, Masaro Kaku 1995-12-26 $122,000
5331191 Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 1994-07-19 $89,000
5202275 Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same Jun Sugiura, Osamu Tsuchiya, Makoto Ogasawara, Fumio Ootsuka, Kazuyoshi Torii +22 more 1993-04-13 $55,000