Jun Doi — 25 Patents at IBM | Patent Leaderboard

Jun Doi has been granted 25 US patents while listed as an inventor at IBM. The first was granted in 1995 and the most recent in October 2025. Jun Doi ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Jun Doi in Yokohama, JP.

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12455991	Circuit serialization for parameterized circuit simulation	Hideaki Horii, Christopher H. Wood	2025-10-28
12032888	Batched quantum circuits simulation on a graphics processing unit	—	2024-07-09	$16,648,000
11205030	Avoiding data exchange in gate operation for quantum computing gates on a chip	—	2021-12-21	$5,237,000
11157667	Gate fusion for measure in quantum computing simulation	Hiroshi Horii, Hitomi Chiba	2021-10-26	$2,874,000
10795967	Multiple precision integer multiplier by matrix-matrix multiplications using 16-bit floating point multiplier	—	2020-10-06	$5,751,000
10782897	Memory reduction for neural networks with fixed structures	Taro Sekiyama, Haruki Imai, Yasushi Negishi	2020-09-22	$3,040,000
10713581	Parallelization and synchronization of procedures to enable overhead hiding	—	2020-07-14	$4,158,000
10671550	Memory offloading a problem using accelerators	—	2020-06-02	$2,290,000
10528642	Multiple precision integer multiple by matrix-matrix multiplications using 16-bit floating point multiplier	—	2020-01-07	$1,754,000
10453167	Estimating performance of GPU application for different GPU-link performance ratio	Kiyokuni Kawachiya, Yasushi Negishi	2019-10-22	$3,154,000
10311174	Innermost data sharing method of lattice quantum chromodynamics calculation	—	2019-06-04	$2,774,000
9251118	Scheduling computation processes including all-to-all communications (A2A) for pipelined parallel processing among plurality of processor nodes constituting network of n-dimensional space	Yasushi Negishi	2016-02-02	$1,325,000
8954849	Communication support method, system, and server device	Kaori Fujiwara, Michiaki Tatsubori	2015-02-10	$3,717,000
D679790	Water heater	Hiroaki Tanaka, Tetsunori Kuriyama, Takahide Hasegawa, Kengo Horiuchi, Eiji Kanki	2013-04-09
8416185	Operational object controlling device, system, method and program	Kaori Fujiwara, Michiaki Tatsubori	2013-04-09	$4,611,000
7714867	Topology determination, decomposable shape generation, and structured mesh generation	Keisuke Inoue, Atsuhshi Yamada	2010-05-11	$5,650,000
7580651	Image forming apparatus and method of controlling energy saving mode	Yoshiyuki Namizuka, Hiroshi Hosaka, Keiichiroh Katoh, Mitsuhisa Kanaya, Yuji Takahashi +4 more	2009-08-25
7486289	Recognition model generation and structured mesh generation system and method	Keisuke Inoue, Atsushi Yamada, Takeo Yoshizawa	2009-02-03	$3,057,000
7436407	Topology determination, decomposable shape generation, and structured mesh generation	Keisuke Inoue, Atsushi Yamada	2008-10-14	$7,419,000
5995712	Image forming system with control of executing an image combine function	—	1999-11-30
5826154	Copier	Toshiki Yamashita, Tomonori Fukui, Fumio Kawamura, Jyouji Katoh, Yasuo Kawada	1998-10-20
5557390	Digital copier system	Norifumi Ito	1996-09-17
5506657	Interleaving digital copier system	Norifumi Ito	1996-04-09
5467181	Image forming system	—	1995-11-14
5440372	Digital copier system	Norifumi Ito	1995-08-08

Jun Doi — 25 Patents

Issued Patents All Time

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