Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Ricoh Printing Systems

Rank (All Time): #5,572 of 106,127Top 6%
200 inventors
131 Patents All Time

Top Inventors at Ricoh Printing Systems All Time

Showing 1–50 of 200 inventors

RankNamePatents
1 Takahiro Yamada 17
2 Hitoshi Kida 16
3 Shinya Kobayashi 12
#4 Satoru Tobita 10
#5 Tomohiko Koda 9
#6 Osamu Machida 8
#6 Toshio Ogiso 8
#8 Chikara Hiraoka 7
#8 Kenji Asuwa 7
#8 Takeshi Mochizuki 7
#8 Toru Hanashima 7
#12 Hiroshi Sasaki 6
#12 Kazuo Shimizu 6
#12 Shigeru Obata 6
#12 Shunichi Oohara 6
#12 Shigenori Yaguchi 6
#12 Shintaro Yamada 6
#12 Teruaki Mitsuya 6
#12 Yoshinari Suzuki 6
#20 Isao Nakajima 5
#20 Keiji Kataoka 5
#20 Masahiro Yagi 5
#20 Seiji Kageyama 5
#20 Shingo Takai 5
#20 Susumu Monma 5
#20 Takashi Suzuki 5
#20 Toru Miyasaka 5
#20 Toshiharu Sumiya 5
#20 Yasushi Hashimoto 5
#20 Yasuyuki Shibayama 5
#20 Akihiko Yamazaki 5
#32 Hidetoshi Fujii 4
#32 Hiroyuki Mabuchi 4
#32 Junji Kobayashi 4
#32 Jun Nagata 4
#32 Kazuhiro Wakamatsu 4
#32 Kunio Satou 4
#32 Kunihiro Tamahashi 4
#32 Makoto Kurosawa 4
#32 Ryuuichi Shimizu 4
#32 Shuho Yokokawa 4
#32 Yoshitaka Fujinuma 4
#32 Akira Asaoka 4
#44 Hisao Okada 3
#44 Hirobumi Ouchi 3
#44 Hiroshi Ueno 3
#44 Junshin Sakamoto 3
#44 Kazuo Kikuchi 3
#44 Kenichi Kugai 3
#44 Masato Miwa 3