Inventor
TAKEUCHI YOJI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “TAKEUCHI YOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI PENCIL CO
15 patentsUS6613135B1Sep 2, 2003
Pseudo-plastic water based ink for ballpoint pen
MITSUBISHI PENCIL CO21 citations92
US5990201ANov 23, 1999
Pseudo-plastic aqueous ink for ball point pen
MITSUBISHI PENCIL CO25 citations92
US6264729B1Jul 24, 2001
Water based ink composition for writing instrument
MITSUBISHI PENCIL CO17 citations84
US6776829B2Aug 17, 2004
Water-based ink composition for writing utensil
MITSUBISHI PENCIL CO15 citations83
US6146452ANov 14, 2000
Pseudoplastic water based ink for ballpoint pen
MITSUBISHI PENCIL CO10 citations74
US6423127B1Jul 23, 2002
Pseudo-plastic water base ink for ball point pen
MITSUBISHI PENCIL CO9 citations73
US6261351B1Jul 17, 2001
Water based ink for ball point pen
MITSUBISHI PENCIL CO11 citations73
US6176910B1Jan 23, 2001
Pseudoplastic water based ink for ballpoint pen
MITSUBISHI PENCIL CO10 citations73
US6599352B1Jul 29, 2003
Water-based ink composition for writing instrument
MITSUBISHI PENCIL CO4 citations62
US7345100B2Mar 18, 2008
Water-based ink composition for ball-point pen
MITSUBISHI PENCIL CO4 citations61
US7279512B2Oct 9, 2007
Water-based ink composition for ballpoint pen
MITSUBISHI PENCIL CO3 citations61
US9416286B2Aug 16, 2016
Ink composition for aqueous ballpoint pen
MITSUBISHI PENCIL CO2 citations57
US7179005B2Feb 20, 2007
Ink follower for water-based ink ballpoint pen
MITSUBISHI PENCIL CO0 citations52
US7179006B2Feb 20, 2007
Ink follower
MITSUBISHI PENCIL CO0 citations52
US6605143B2Aug 12, 2003
Water based ink composition for writing instrument
MITSUBISHI PENCIL CO0 citations52
HITACHI MAXELL
6 patentsUS5611958AMar 18, 1997
Infrared phosphor and material having latent images and optical reading system using said phosphor
HITACHI MAXELL72 citations95
US5463212AOct 31, 1995
Latent image forming member and method of manufacturing, latent image reading apparatus and latent image reading system
HITACHI MAXELL52 citations91
US6139774AOct 31, 2000
Fluorescent substance
HITACHI MAXELL9 citations74
US4830923AMay 16, 1989
Magnetic recording medium
HITACHI MAXELL16 citations73
US4803125AFeb 7, 1989
Magnetic recording medium
HITACHI MAXELL12 citations73
US4698279AOct 6, 1987
Magnetic recording medium
HITACHI MAXELL3 citations62
KONAMI DIGITAL ENTERTAINMENT CO LTD
3 patentsUS10016687B2Jul 10, 2018
Game system, server device, control method for server device, program, and information recording medium
KONAMI DIGITAL ENTERTAINMENT CO LTD0 citations52
US9713773B2Jul 25, 2017
Game system, server device, control method for server device, program, and information recording medium
KONAMI DIGITAL ENTERTAINMENT CO LTD0 citations42
US11951393B2Apr 9, 2024
Game system, terminal apparatus, and recording medium
KONAMI DIGITAL ENTERTAINMENT CO LTD0 citations41