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Hiroyuki Doi

HI Hitachi: 30 patents #925 of 28,497Top 4%
MS Mitsubishi Hitachi Power Systems: 10 patents #27 of 970Top 3%
PA Panasonic: 9 patents #2,933 of 21,108Top 15%
Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
BA Babcock-Hitachi: 2 patents #128 of 415Top 35%
TW The Japan Steel Works: 2 patents #158 of 643Top 25%
JC Jms Co.: 1 patents #82 of 184Top 45%
MI Mitsui Toatsu Chemicals, Incorporated: 1 patents #880 of 1,543Top 60%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
NJ Nuvoton Technology Corporation Japan: 1 patents #117 of 222Top 55%
HL Harison Toshiba Lighting: 1 patents #39 of 82Top 50%
CP Chugai Pharmaceutical: 1 patents #730 of 1,238Top 60%
TT Toshiba Lighting & Technology: 1 patents #279 of 486Top 60%
TC Tower Partners Semiconductor Co.: 1 patents #95 of 183Top 55%
KO Koganei: 1 patents #41 of 103Top 40%
Overall (All Time): #33,500 of 4,157,543Top 1%
65
Patents All Time

Issued Patents All Time

Showing 51–65 of 65 patents

Patent #TitleCo-InventorsDate
6472281 Method for fabricating semiconductor device using a CVD insulator film Yasushi Okuda, Keita Takahashi, Nobuyuki Tamura 2002-10-29
6419453 Steam turbine rotor shaft Yutaka Fukui, Masahiko Arai, Ryo Hiraga, Kenichiro Nomura, Toshio Fujita +1 more 2002-07-16
6388308 Semiconductor device and method for driving the same Hirotsugu Honda, Katsujirou Arai, Takuo Akashi, Naritsugu Yoshii 2002-05-14
6377490 Nonvolatile semiconductor memory device and method for driving the same Keita Takahashi, Masafumi Doi, Nobuyuki Tamura, Yasushi Okuda 2002-04-23
6368907 Method of fabricating semiconductor device Takao Yamaguchi 2002-04-09
6206634 Steam turbine blade, method of manufacturing the same, steam turbine power generating plant and low pressure steam turbine Mitsuo Kuriyama, Shigeyoshi Nakamura, Shinya Imano, Takeshi Onoda 2001-03-27
6169307 Nonvolatile semiconductor memory device comprising a memory transistor, a select transistor, and an intermediate diffusion layer Keita Takahashi, Masafumi Doi, Nobuyuki Tamura, Yasushi Okuda 2001-01-02
5982019 Semiconductor device with a diffused resistor Yasushi Hazama 1999-11-09
5964091 Gas turbine combustor and gas turbine Yutaka Fukui, Tetsuo Kashimura, Hideyo Kodama, Ryo Hiraga 1999-10-12
5520733 Deposition apparatus and profile-following device suitable for apparatuses such as those for deposition Shinichi Kazui, Takeji Shiokawa, Keiji Fujikawa, Yutaka Hashimoto, Makoto Matsuoka 1996-05-28
5480283 Gas turbine and gas turbine nozzle Ken Yasuda, Tetsuo Kashimura, Yutaka Fukui 1996-01-02
5370497 Gas turbine and gas turbine nozzle Ken Yasuda, Tetsuo Kashimura, Yutaka Fukui 1994-12-06
4802894 Method of using a structural member of anti-sulfur-attack cr-ni-al-si alloy steel for coal gasification system Kenichi Usami, Seishin Kirihara, Tadaoki Morimoto, Michiya Okada 1989-02-07
4505232 Boiler tube Kenichi Usami, Seishin Kirihara, Choichi Asano, Masayuki Sukekawa, Yasuhide Sakaguchi 1985-03-19
4439567 Process for injection molding polyolefin resin compositions Takeo Inoue, Jun Otsu, Tateyo Sasaki, Keigo Suehiro 1984-03-27