Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JA

Junichi Arai

HOHosiden: 52 patents #4 of 328Top 2%
NCNihon Dempa Kogyo Co.: 16 patents #17 of 296Top 6%
Nissan Motor Co.: 9 patents #795 of 8,689Top 10%
FCFukuda Metal Foil & Powder Co.: 6 patents #6 of 95Top 7%
SESeiko Epson: 6 patents #2,663 of 7,774Top 35%
MOMoritex: 5 patents #3 of 50Top 6%
KMKonica Minolta: 5 patents #737 of 2,718Top 30%
KMKonica Minolta: 3 patents #626 of 1,361Top 50%
AKAkashi: 2 patents #3 of 14Top 25%
TCToppan Printing Co.: 2 patents #414 of 1,467Top 30%
UMUchiyama Manufacturing: 1 patents #36 of 116Top 35%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
KKKayaba Kogyo: 1 patents #38 of 155Top 25%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
MMMitsubishi Motors: 1 patents #856 of 1,823Top 50%
RSRenault S.A.S.: 1 patents #417 of 1,209Top 35%
Toyokawa, JP: #1 of 656 inventorsTop 1%
Overall (All Time): #13,440 of 4,157,543Top 1%
104 Patents All Time

Issued Patents All Time

Showing 76–100 of 104 patents

Patent #TitleCo-InventorsDate
6632116 Plasma display panel, manufacturing method and manufacturing apparatus of the same Eizaburo Watanabe, Naoto Ohno, Katsumi Ohira, Isao Kato, Yasumasa Akimoto +3 more 2003-10-14
6482045 Connector socket, connector plug and connector assembly 2002-11-19
6354148 Rebound-type hardness tester Yasunori Sato, Yuichi Minami 2002-03-12
D452846 Electrical connector 2002-01-08
D449822 Electrical connector 2001-10-30
D448349 Electrical connector 2001-09-25
D447732 Electrical connector 2001-09-11
D447465 Electrical connector 2001-09-04
D445402 Electrical plug 2001-07-24
D444129 Electrical plug 2001-06-26
D441344 Electrical socket 2001-05-01
D441345 Electrical connector 2001-05-01
D440943 Electrical socket 2001-04-24
D436925 Electrical connector 2001-01-30
D434005 Electrical connector 2000-11-21
D433664 Electrical connector 2000-11-14
6118476 CCD Microscope Yuhkoh Morito, Kouichi Watanabe 2000-09-12
D430110 Electrical connector 2000-08-29
D430109 Electrical connector 2000-08-29
D419525 Electrical connector 2000-01-25
D415108 Multi-pin plug 1999-10-12
5865725 Image capture instrument with side view angle Kazuhisa Shimada, Kouichi Watanabe 1999-02-02
5827953 Method of testing hardness in rebound type hardness tester Yasunori Sato, Yuichi Minami 1998-10-27
5755672 Measuring equipment of fat and water amount existing on the object Makoto Toyota 1998-05-26
5689602 CCD video scope with illumination to the object 1997-11-18