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USPTO Patent Rankings Data through Sept 30, 2025
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Maruo Calcium Co. — 35 Patents

Rank (All Time): #18,036 of 106,127Top 20%
44 inventors
35 Patents All Time

Top Inventors at Maruo Calcium Co. All Time

Showing 1–44 of 44 inventors

RankNamePatents
1 Shiro Minayoshi 12
2 Hisakazu Hojo 10
3 Hidemitsu Kasahara 9
3 Shigeo Takiyama 9
#5 Naoki Kubota 7
#6 Hidehiko Nishioka 6
#6 Minoru Hanazaki 6
#6 Seiya Shimizu 6
#9 Mitsunobu Aoyama 5
#10 Hiroshi Shibata 4
#11 Katsunori Fukumoto 3
#11 Kouhei Sako 3
#11 Naofumi Saito 3
#11 Naofumi Saitoh 3
#11 Noritsugu Ebisuya 3
#11 Yoichi Takahashi 3
#17 Makoto Nagamatsu 2
#17 Masako Takahashi 2
#17 Nariatsu Uto 2
#17 Norimasa Maida 2
#17 Sakae Kuroda 2
#17 Shigeru Sakaguchi 2
#17 Takeshi Maeba 2
#17 Toshio Fujiwara 2
#17 Toshio Higashi 2
#17 Yoshimasa Morisaki 2
#17 Yuusuke Hayashi 2
#28 Hiroyuki Hisakuni 1
#28 Hiroaki Katayama 1
#28 Hisakazu Kojo 1
#28 Homare Kudo 1
#28 Isao Hashimoto 1
#28 Jun Tatebayashi 1
#28 Kazuya Yamamoto 1
#28 Mikio Aoyama 1
#28 Nobuhiro Taniguchi 1
#28 Ryoji Utsumi 1
#28 Shoji Ehara 1
#28 Takaaki Nishioka 1
#28 Takanobu Sakai 1
#28 Tatsunari Yago 1
#28 Tomonori Kosaka 1
#28 Yusuke Hayashi 1
#28 Kazunori Ohide 1