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Hiroki Doi — 14 Patents

CKCkd: 7 patents #23 of 332Top 7%
Sharp Kabushiki Kaisha: 7 patents #2,322 of 10,731Top 25%
TLTokyo Electron Limited: 3 patents #2,069 of 5,567Top 40%
Miyoshi, JP: #202 of 2,464 inventorsTop 9%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Hiroki Doi has been granted 14 US patents while listed as an inventor at Ckd. The first was granted in 2002 and the most recent in January 2025. Hiroki Doi ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Hiroki Doi in Miyoshi, JP.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
12188566 Four-way valve, valve unit, temperature control system Akihiro Ito, Masaya Yamauchi, Masayuki Kouketsu 2025-01-07
8104516 Gas supply unit and gas supply system Shuji Moriya, Hideki Nagaoka, Tsuneyuki Okabe, Hiroshi Itafuji, Minoru Ito 2012-01-31
7853416 Flow rate verification failure diagnosis apparatus, flow rate verification failure diagnosis system, flow rate verification failure diagnosis method, and control program product for flow rate verification failure diagnosis Akiko Nakada, Keisuke Kato, Akihito Sugino 2010-12-14
7716993 Gas flow rate verification unit Yukio Ozawa, Minoru Ito, Akiko Nakada 2010-05-18
7586299 Power-supply semiconductor integrated circuit, power-supply semiconductor integrated circuit system, development assisting system for power-supply circuit, and program and storage medium therefor Toshiya Fujiyama, Shigeyoshi KITAMURA 2009-09-08
7353841 Relative pressure control system and relative flow control system Tetsujiro Kono, Minoru Ito, Hideki Nagaoka, Keiki Ito, Hiroki Endo +5 more 2008-04-08
7343926 Liquid raw material supply unit for vaporizer Tsuneyuki Okabe, Shigeyuki Okura, Minoru Ito, Yoji Mori, Yasunori Nishimura 2008-03-18
7224591 Charge pump DC/DC converter circuit Kenji Kaishita 2007-05-29
6972602 Power-on reset circuit Tetsuya Akamatsu, Masanori Inamori 2005-12-06
6913031 Pulse shot type flow controller and pulse shot type flow controlling method Tokuhide Nawata, Yoshihisa Sudoh, Masayuki Kouketsu, Masayuki Watanabe 2005-07-05
6803807 Negative voltage output charge pump circuit Toshiya Fujiyama, Masanori Inamori 2004-10-12
6720761 Hall device biasing circuit and magnetism detection circuit including the same Masanori Inamori 2004-04-13
6400201 Delay circuit and ring oscillator incorporating the same Masanori Inamori, Syouji Sakurai, Toshiya Fujiyama 2002-06-04
6392444 IIL reset circuit Masanori Inamori 2002-05-21

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Ke PAN14
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Taketoshi Okuno14