Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sakai, JP ranks #102 worldwide for total patents filed in 2021, with 1,241 patents from 528 inventors. Leading employers of inventors based in Sakai, JP include Sakai Display Products, Sharp Kabushiki Kaisha, Tokyo Electron Limited.

Showing 1–50 of 528 inventors

Rank Inventor Primary Company Patents
1 Katsuhiko Kishimoto Sakai Display Products 62
2 Wataru Ouchi Sharp Kabushiki Kaisha 31
3 Hidekazu Tsuboi Sharp Kabushiki Kaisha 23
#4 Masafumi Aramoto Sharp Kabushiki Kaisha 22
#5 Tomohiro Ikai Sharp Kabushiki Kaisha 21
#6 Yasuhiro Hamaguchi Sharp Kabushiki Kaisha 17
#7 Yudai Kawasaki Sharp Kabushiki Kaisha 16
#8 Yukinobu Yasugi Sharp Kabushiki Kaisha 15
#9 Tatsuya Yamaguchi Tokyo Electron Limited 11
#9 Hitoshi Takayama Shimano 11
#11 Yoko Kuge Sharp Kabushiki Kaisha 10
#11 Hiromichi Tomeba Sharp Kabushiki Kaisha 10
#13 Takako Koide Sharp Kabushiki Kaisha 9
#13 Takehiko Nakajima Shimano 9
#13 Ken Atsumo Sharp Kabushiki Kaisha 9
#16 Hiroshi Fujita Shimano 8
#16 Yasuhiro Manji Kubota 8
#16 Yuta Kurokawa Shimano 8
#16 Kazuki Takahashi Sharp Kabushiki Kaisha 8
#16 Tomoko Aono Sharp Kabushiki Kaisha 8
#16 Yozo Narutaki Sharp Kabushiki Kaisha 8
#22 Wataru Sasaki Kubota 7
#22 Ryosuke Kinugawa Kubota 7
#22 Takashi Ochi Sharp Kabushiki Kaisha 7
#22 Kazuhiro Takahara Kubota 7
#22 Keisuke Miura Kubota 7
#22 Katsuhiko Uemura Kubota 7
#22 Shigeki Kamitani Daikin Industries 7
#22 Hiroki Munetomo Sharp Kabushiki Kaisha 7
#22 Takeshi Ueda Jtekt 7
#31 Masakatsu Tominaga Sharp Kabushiki Kaisha 6
#31 Tohru Okabe Sharp Kabushiki Kaisha 6
#31 Gen Futagami Kubota 6
#31 YOUZOU KYOUKANE Sharp Kabushiki Kaisha 6
#31 Takashi Nakagawa Semiconductor Energy Laboratory 6
#31 Kazuo Sakaguchi Kubota 6
#37 Hidetoshi Nakamura Honda Motor Co. 5
#37 Miho Yamada Sharp Kabushiki Kaisha 5
#37 Takashi Uchida Canon 5
#37 Haruhito Yabuki Sakai Display Products 5
#37 Atsuhiro Emura Shimano 5
#37 Toshikatsu ITOH Sharp Kabushiki Kaisha 5
#37 Shinichi Kawato Sharp Kabushiki Kaisha 5
#37 Takahiro Yamasaki Daikin Industries 5
#37 Kento Mitsuyasu Shimano 5
#37 Kenji Kamada Shimano 5
#37 Kohzoh Nakamura Sharp Kabushiki Kaisha 5
#37 Kazuki Koshiyama Shimano 5
#37 Kiho Sakamoto Sharp Kabushiki Kaisha 5
#37 Daisuke Toyoshima Sharp Kabushiki Kaisha 5