Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
HN

Hiroaki Nakanishi — 59 Patents

Ricoh Company: 16 patents #1,362 of 9,818Top 15%
Hitachi: 16 patents #2,442 of 28,497Top 9%
SHShimadzu: 10 patents #142 of 2,007Top 8%
SESeiko Epson: 5 patents #2,973 of 7,774Top 40%
OMOmron: 4 patents #761 of 3,089Top 25%
HCHitachi Engineering Co.: 4 patents #38 of 572Top 7%
Ngk Spark Plug Co.: 2 patents #703 of 1,594Top 45%
Casio Computer Co.: 1 patents #1,284 of 1,970Top 70%
OEOmron Tateisi Electronics: 1 patents #264 of 599Top 45%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
KUKyoto University: 1 patents #568 of 1,688Top 35%
TTThe Ritsumeikan Trust: 1 patents #34 of 141Top 25%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
Nec: 1 patents #7,928 of 14,502Top 55%
HEHitachi Process Computer Engineering: 1 patents #43 of 101Top 45%
Kyoto, JP: #160 of 11,909 inventorsTop 2%
Overall (All Time): #40,067 of 4,157,543Top 1%
59 Patents All Time
Hiroaki Nakanishi has been granted 59 US patents while listed as an inventor at Hitachi. The first was granted in 1984 and the most recent in November 2025. Hiroaki Nakanishi ranks #40,067 of 4,157,543 US inventors in our database (top 0.96%). Patent records list Hiroaki Nakanishi in Kyoto, JP.

Patents per Year

Patents granted per year, 1984 to 2022Bar chart with a peak of 5 patents in 2000.peak 51984: 2 patents19841985: 3 patents1986: 1 patents1988: 1 patents19881989: 2 patents1990: 2 patents1992: 2 patents19921993: 1 patents1996: 1 patents1998: 3 patents19981999: 3 patents2000: 5 patents2002: 2 patents20022003: 1 patents2004: 5 patents2005: 3 patents20052006: 1 patents2008: 2 patents2009: 2 patents20092010: 2 patents2011: 3 patents2012: 1 patents20122013: 1 patents2016: 1 patents2017: 1 patents20172019: 1 patents2021: 2 patents2022: 4 patents2022

Issued Patents All Time

Showing 1–25 of 59 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12483774 Mobile work analysis device and work analysis method Takahide ARAO, Masashi Nomura, Takahiro Shimoyama 2025-11-25
11460978 Display apparatus and non-transitory computer-readable storage medium storing display control program Toshifumi Sakai 2022-10-04
11455091 Display device and non-transitory computer-readable storage medium storing display control program Toshifumi Sakai 2022-09-27
11358398 Print control device, non-transitory computer-readable storage medium storing print control program, and printed matter production method Ikuo Masujima, Kiyokazu Kamijo, Kei Miyazawa, Takahiro Otani, Junko Yamamoto +3 more 2022-06-14
11305556 Print control device, non-transitory computer-readable storage medium storing print control program, and printed matter production method 2022-04-19
11181031 Muffler Hidenori Hamashima 2021-11-23 $189,000
11068142 Display device and non-transitory computer-readable storage medium storing display control program Toshifumi Sakai 2021-07-20
10186355 Thermistor element and manufacturing method therefor Tomoki Yamaguchi, Shinji Ban, Hiroshi Watanabe, Yasuyuki Okimura, Seiji Oya +1 more 2019-01-22
9752936 Temperature sensor Seiji Oya 2017-09-05
9393691 Industrial robot system including action planning circuitry for temporary halts Akio Noda, Haruhisa Okuda, Kenichi Tanaka, Tetsuo Sawaragi, Hiroshi Matsuhisa +7 more 2016-07-19
8491776 Flow cell, apparatus for concentrating radioactive fluoride anion, and method of concentrating radioactive fluoride anion Satoshi Konishi, Keisuke Naka 2013-07-23
8153992 Ionization emitter, ionization apparatus, and method for manufacturing ionization emitter Shigeyoshi Horiike 2012-04-10
7982531 Reference voltage generating circuit and power supply device using the same Masaaki Yoshida 2011-07-19
7981284 Suppressor utilizing micro ion exchange tube and ion chromatograph utilizing the same Katsumasa Sakamoto, Yukio Oikawa, Shigeyoshi Horiike 2011-07-19
7969791 Memory configuration of a composite memory device Minoru Fukuda, Kunio Matsudaira, Masahiro Matsuo, Hirohisa Abe 2011-06-28
7782690 Memory control circuit and semiconductor device 2010-08-24
7672172 Memory configuration of a composite memory device Minoru Fukuda, Kunio Matsudaira, Masahiro Matsuo, Hirohisa Abe 2010-03-02
RE40917 Memory configuration of a composite memory device Minoru Fukuda, Kunio Matsudaira, Masahiro Matsuo, Hirohisa Abe 2009-09-15
7483312 Memory configuration of a composite memory device Minoru Fukuda, Kunio Matsudaira, Masahiro Matsuo, Hirohisa Abe 2009-01-27
7335557 Semiconductor device of non-volatile memory Masaaki Yoshida 2008-02-26
7314797 Semiconductor device and its manufacturing method Moriya Iwai, Masaaki Yoshida 2008-01-01
7035980 Effects of prefetching on I/O requests in an information processing system Isamu Kurokawa, Junichi Muto, Hisaharu Takeuchi, Masahiro Kawaguchi 2006-04-25 $140,000
6952035 Semiconductor device of non-volatile memory Masaaki Yoshida 2005-10-04
6949790 Semiconductor device and its manufacturing method Moriya Iwai, Masaaki Yoshida 2005-09-27
6854023 Data processing system and storage control device used therefor Isamu Kurokawa, Masaru Tsukada, Hisaharu Takeuchi, Masahiro Kawaguchi 2005-02-08 $95,000