Patent Leaderboard
All Time
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
Search
Companies
Inventors
NC
Nippon Polyurethane Industry Co.
Rank (All Time):
#16423
of 106,127
Top 20%
76 inventors
39
Patents All Time
Top Inventors at Nippon Polyurethane Industry Co.
All Time
Rank
Name
Patents
1
Shin Konishi
13
2
Yukihiro Morikawa
8
3
Toshiaki Sasahara
6
#4
Mitsuhiro Yoshida
5
#5
Noriyoshi Yano
5
#6
Takeshi Morishima
5
#7
Susumu Sato
4
#8
Ichiro Higashikubo
3
#9
Takao Fukami
3
#10
Tadashi Kimura
3
#11
Yukio Ohbuchi
3
#12
Hirokazu Oka
2
#13
Hiroei Yokota
2
#14
Iku Ohki
2
#15
Koji Kanaya
2
#16
Koichi Uehara
2
#17
Kouji Yoshida
2
#18
Masahiro Hayashi
2
#19
Masahiro Kawasaki
2
#20
Masanori Shindo
2
#21
Mitsushige Ikemoto
2
#22
Motomu Kita
2
#23
Naotaka Izumi
2
#24
Sadako Hashimoto
2
#25
Shinjiro Hama
2
#26
Shinji Hirayama
2
#27
Shogo Itoh
2
#28
Shohei Tsunoda
2
#29
Takao Hidai
2
#30
Tetsuo Kijima
2
#31
Toshihiko Tanaka
2
#32
Yoshiaki Maeda
2
#33
Hisashi Nanno
1
#34
Hideyuki Tezen
1
#35
Hiroyoshi Yano
1
#36
Junichi Yamasaki
1
#37
Katsuhiko Sakurai
1
#38
Kazuya Sugimoto
1
#39
Kentaro Iwanaga
1
#40
Kensuke TANI
1
#41
Keiko Yoshida
1
#42
Kiyoshi Moriya
1
#43
Kiyofumi Murayama
1
#44
Kiyoshi Sakai
1
#45
Kouji Kitahata
1
#46
Kouichi Uehara
1
#47
Kouji Yamato
1
#48
Mamoru Akimoto
1
#49
Masato Endo
1
#50
Masashi Kanaya
1
#51
Masatake Katagiri
1
#52
Masashi Somezawa
1
#53
Mitsuru Chiba
1
#54
Minoru Nakamura
1
#55
Mitsuo Yoneda
1
#56
Naoki Uchida
1
#57
Osamu Ishizu
1
#58
Osamu Takata
1
#59
Seiki Suzuki
1
#60
Shyogo Itoh
1
#61
Shunsuke Murakami
1
#62
Shigeru Nakagawa
1
#63
Susumu Enomoto
1
#64
Sumito Nii
1
#65
Takaki Jono
1
#66
Toshihiko Fujita
1
#67
Toshihide Kobayashi
1
#68
Toshinori Moriga
1
#69
Toshihiko Tsuchida
1
#70
Yoshizumi Kataoka
1
#71
Yosizumi Kataoka
1
#72
Yoshinobu Ninomiya
1
#73
Yusuke Aoki
1
#74
Yuriko Minami
1
#75
Yukio Obuchi
1
#76
Akira Hashimoto
1