Ryusuke Ishikawa — 12 Patents at Denso

Ryusuke Ishikawa has been granted 12 US patents while listed as an inventor at Denso. The first was granted in 2013 and the most recent in July 2025. Ryusuke Ishikawa ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Ryusuke Ishikawa in Kariya, JP.

Patents per Year

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Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12370978	Electronic key system	Hiroya Yamamoto, Kohei NIMURA	2025-07-29
12291090	Vehicle control device, vehicle control system, vehicle control method, and storage medium	Yoshiya SUGITA, Shutaro TOKUNAGA	2025-05-06
12104427	Vehicle control device, vehicle control system, vehicle control method, and storage medium	Yoshiya SUGITA, Shutaro TOKUNAGA	2024-10-01	$881,000
11491953	Mobile device and electronic key system for wireless communication with vehicle device	—	2022-11-08
11256248	Reception range varying system, vehicle control device, and portable device	Hiroaki Maehara, Takayuki Hattori, Tetsuya Miwa, Tatsuhito Yoshida	2022-02-22
10723315	Electronic key system for vehicle, and portable device	—	2020-07-28
10369965	Electronic key system, on-board device, and electronic key	Takashi Saiki	2019-08-06
9995061	Smart entry system	Nobuyoshi Nagai, Koji Ueno	2018-06-12
9903985	Infrared apparatus	Yonosuke Koyama, Makoto Hatano, Seizaburou Kawashima	2018-02-27
9008861	Vehicle device control system with a disabling feature	Takashi Saiki, Takeshi Kumazaki	2015-04-14
8684044	Fluid charging system, movable object, supply facility, and method for controlling fluid charge	Takashi Saiki, Makoto Kawatsu	2014-04-01
8346090	Infrared communication system, movable object, supply facility, and method for infrared communication in the same	Makoto Kawatsu	2013-01-01

Ryusuke Ishikawa — 12 Patents

Patents per Year

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