Yoshiyuki Okamoto has been granted 91 US patents while listed as an inventor at Denso . The first was granted in 1983 and the most recent in March 2025. Yoshiyuki Okamoto ranks #17,516 of 4,157,543 US inventors in our database (top 0.42%). Patent records list Yoshiyuki Okamoto in Shibukawa, NY, JP.
Patents per Year Patents granted per year, 1992 to 2025 Bar chart with a peak of 16 patents in 2020. peak 16 1992: 2 patents 1992 1993: 4 patents 1994: 2 patents 1996: 1 patents 1996 1998: 3 patents 1999: 1 patents 2000: 2 patents 2000 2001: 1 patents 2002: 2 patents 2003: 2 patents 2003 2004: 2 patents 2005: 1 patents 2006: 1 patents 2006 2007: 1 patents 2009: 2 patents 2010: 5 patents 2010 2012: 2 patents 2013: 1 patents 2014: 3 patents 2014 2015: 1 patents 2016: 1 patents 2017: 2 patents 2017 2018: 4 patents 2019: 4 patents 2020: 16 patents 2020 2021: 7 patents 2022: 1 patents 2023: 2 patents 2023 2024: 1 patents 2025: 1 patents 2025 Issued Patents All Time
Showing 1–25 of 91 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12257882 Air conditioning device for vehicle Yoshiki Shibaoka , Kouhei Yamashita , Hongming Zhang , Takayuki Matsumura , Kodai Matsuzaki 2025-03-25
11973403 Variable-speed accelerator and a method for starting variable-speed accelerator Masahiro Kobayashi , Hiroyuki Miyata 2024-04-30
11613165 Air conditioner for vehicle Tetsuya Ishizeki , Akira Horikoshi , Takashi Toyama , Nobuhiko Fujii 2023-03-28
$151,000
11577579 Vehicle air-conditioning device Tetsuya Ishizeki , Takefumi TOMIYA 2023-02-14
$163,000
11254188 Air conditioner for vehicle Tetsuya Ishizeki , Akira Horikoshi , Takashi Toyama , Nobuhiko Fujii 2022-02-22
11189772 Thermoelectric power generator Shinya Kitagawa , Takuya Matsuda 2021-11-30
11105270 Control device and control method for rotary machine, and rotary machine unit equipped with control device Tadashi Kawahara 2021-08-31
11077736 Vehicular air conditioner Tetsuya Ishizeki 2021-08-03
11060587 Variable-speed speed-up mechanism Masahiro Kobayashi 2021-07-13
11024787 Thermoelectric power generation device Takuya Matsuda , Shinya Kitagawa 2021-06-01
11025180 Variable speed accelerator Masahiro Nakashima 2021-06-01
10975936 Variable-speed accelerator and method for starting variable-speed accelerator Masahiro Kobayashi 2021-04-13
10865855 Variable-speed speed-up gear Masahiro Kobayashi 2020-12-15
10837526 Variable-speed speed-up mechanism Masahiro Nakashima , Yasushi Hirota 2020-11-17
10777725 Thermoelectric generator Takuya Matsuda , Shinya Kitagawa 2020-09-15
10738858 Variable-speed speed increaser, variable-speed speed increaser control device, and variable-speed speed increaser control method Hiroyuki Miyata , Masahiro Kobayashi , Yasushi Mori 2020-08-11
10680539 Variable-speed speed increaser — 2020-06-09
10677324 Variable speed accelerator — 2020-06-09
10663039 Variable speed accelerator and method for controlling variable speed accelerator Masahiro Nakashima 2020-05-26
10656110 Temperature control system, temperature control device and refrigeration device Kazunari Higashida , Hirofumi Komori , Hideaki Furumoto , Tomoaki Ito , Hiroki Mori +2 more 2020-05-19
10626959 Variable-speed speed-up mechanism Masahiro Kobayashi 2020-04-21
10626953 Variable speed increaser and control method thereof Hiroyuki Miyata , Hideki TONAKA 2020-04-21
10605339 Variable speed accelerator and control method for variable speed accelerator — 2020-03-31
10605338 Variable-speed speed increaser — 2020-03-31
10601347 Variable electric motor system and electrically powered device thereof Masahiro Kobayashi , Yasushi Mori 2020-03-24
