IC

Idemitsu Kosan Co.

Rank (All Time): #378 of 106,127Top 1%
1,237 inventors
2,264
Patents All Time

Top Inventors at Idemitsu Kosan Co. All Time

RankNamePatents
1 Chishio Hosokawa 215
2 Masahiro Kawamura 143
3 Kazuki Nishimura 106
#4 Masakazu Funahashi 98
#5 Toshihiro Iwakuma 88
#6 Toshinari Ogiwara 84
#7 Tomoki Kato 83
#8 Masato Kaneko 77
#9 Yumiko Mizuki 74
#10 Kazuyoshi Inoue 73
#11 Hirokatsu Ito 66
#12 Yuki Nakano 66
#13 Kenichi Fukuoka 64
#14 Mitsunori Ito 64
#15 Koki Yano 60
#16 Hidetsugu Ikeda 56
#17 Nobuhiro Yabunouchi 56
#18 Masahide Matsuura 53
#19 Yasuhiro Ishikawa 45
#20 Yuichiro Kawamura 45
#21 Tetsuya Inoue 44
#22 Hitoshi Kuma 42
#23 Tasuku HAKETA 41
#24 Hisayuki Kawamura 40
#25 Kei Yoshida 39
#26 Mitsuru Eida 39
#27 Hiroaki Nakamura 38
#28 Masahiko Kuramoto 38
#29 Toshiyuki Tsubouchi 37
#30 Satomi TASAKI 36
#31 Yutaka Minami 36
#32 Shigekazu Tomai 34
#33 Keisuke Funaki 31
#34 Masaki Numata 31
#35 Norio Tomotsu 31
#36 Hitoshi Hata 30
#37 Ryota Takahashi 30
#38 Shuji Machida 30
#39 Hiroshi Yamamoto 29
#40 Kiyoshi Ikeda 29
#41 Takayasu Sado 29
#42 Masatoshi Saito 28
#43 Masami Watanabe 28
#44 Satoshi Hachiya 28
#45 Futoshi Utsuno 27
#46 Minoru Senga 27
#47 Takashi Arakane 27
#48 Yoriyuki Takashima 27
#49 Taro YAMAKI 25
#50 Toshinori Tazaki 24
#51 Akikazu Nakano 24
#52 Hironobu Morishita 23
#53 Hiroshi Tokailin 22
#54 Mineyuki Kubota 22
#55 Masami Kanamaru 22
#56 Tadashi Kusumoto 22
#57 Hirokazu Kawashima 21
#58 Hiroshi Kawato 21
#59 Hideaki Nagashima 21
#60 Hiroyuki Saito 21
#61 Takushi SHIOMI 21
#62 Tetsuya Masuda 21
#63 Sayaka Mizutani 20
#64 Takahiro Fujiyama 20
#65 Takuji Okamoto 20
#66 Harutomo Ikeda 19
#67 Haruhito Sato 19
#68 Hisahiro Higashi 19
#69 Kota Terai 19
#70 Masashi Kasami 19
#71 Nobuaki Shimizu 19
#72 Shigeru Matsuo 19
#73 Tomoaki Takebe 19
#74 Ichiro Nasuno 18
#75 Kazuyoshi Koike 18
#76 Nobuo Tanaka 18
#77 Akio Nodera 18
#78 Kenji Hashimoto 17
#79 Masashi Sakamoto 17
#80 Ryo Aburatani 17
#81 Tadashi Katafuchi 17
#82 Hideki Kamano 16
#83 Komei Yamasaki 16
#84 Kumiko Hibino 16
#85 Masaru Nakagawa 16
#86 Masatoshi Shibata 16
#87 Mizutomo Takeuchi 16
#88 Takaaki Hikosaka 16
#89 Takashi Sumitomo 16
#90 Tomoharu HAYAMA 16
#91 Yu KUDO 16
#92 Yukio Yoshida 16
#93 Fumiaki Takagi 15
#94 Hiroaki Koshima 15
#95 Keita SEDA 15
#96 Kimihiro Yuasa 15
#97 Mitsuru Shibata 15
#98 Motoharu Ishikawa 15
#99 Tomoya Matsumoto 15
#100 Toshio Sakai 15