Inventor
HAYAKAWA TADASHI
JP80 patents
⚠️ This page may combine multiple inventors who share the name “HAYAKAWA TADASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH CO LTD
12 patentsUS8050597B2Nov 1, 2011
Toner container having a gear portion and image forming apparatus
RICOH CO LTD17 citations93
US8346105B2Jan 1, 2013
Information storage device, removable device, developer container, and image forming apparatus
RICOH CO LTD15 citations92
US8385787B2Feb 26, 2013
Image forming apparatus and medium container installed therein
RICOH CO LTD12 citations84
US8027596B2Sep 27, 2011
Image forming apparatus
RICOH CO LTD6 citations74
US12416878B2Sep 16, 2025
Information storage system including a plurality of terminals
RICOH CO LTD0 citations73
US11768448B2Sep 26, 2023
Information storage system including a plurality of terminals
RICOH CO LTD0 citations73
US11429036B2Aug 30, 2022
Information storage system including a plurality of terminals
RICOH CO LTD0 citations73
US11275327B2Mar 15, 2022
Information storage system including a plurality of terminals
RICOH CO LTD0 citations73
US11188007B2Nov 30, 2021
Developer container which discharges toner from a lower side and includes a box section
RICOH CO LTD0 citations73
US10754275B2Aug 25, 2020
Apparatus and method for preventing an information storage device from falling from a removable device
RICOH CO LTD0 citations63
US10725398B2Jul 28, 2020
Developer container having a cap with three portions of different diameters
RICOH CO LTD0 citations63
US9256158B2Feb 9, 2016
Apparatus and method for preventing an information storage device from falling from a removable device
RICOH CO LTD0 citations63
TAKAHASHI YASUFUMI
7 patentsUS9081327B2Jul 14, 2015
Apparatus and method for preventing an information storage device from falling from a removable device
TAKAHASHI YASUFUMI9 citations92
US9069287B2Jun 30, 2015
Apparatus and method for preventing an information storage device from falling from a removable device
TAKAHASHI YASUFUMI4 citations84
US8909071B2Dec 9, 2014
Apparatus and method for preventing an information storage device from falling from a removable device
TAKAHASHI YASUFUMI4 citations84
US9989887B2Jun 5, 2018
Apparatus and method for preventing an information storage device from falling from a removable device
TAKAHASHI YASUFUMI0 citations63
US9599927B2Mar 21, 2017
Apparatus and method for preventing an information storage device from falling from a removable device
TAKAHASHI YASUFUMI0 citations63
US9110402B2Aug 18, 2015
Apparatus and method for preventing an information storage device from falling from a removable device
TAKAHASHI YASUFUMI0 citations63
US8660441B2Feb 25, 2014
Information storage device, removable device, developer container, and image forming apparatus
TAKAHASHI YASUFUMI1 citations63
RICOH KK
6 patentsUS5585896ADec 17, 1996
Image forming apparatus with a contact member contacting an image carrier
RICOH KK311 citations98
US6665512B1Dec 16, 2003
Image forming apparatus
RICOH KK19 citations93
US6505026B2Jan 7, 2003
Belt driving device and image forming apparatus using the same
RICOH KK35 citations92
US5572293ANov 5, 1996
Method of and system for cleaning a charge inducing member
RICOH KK42 citations92
US5557373ASep 17, 1996
Cleaning system for charging drum of an image forming apparatus
RICOH KK41 citations92
US5512708AApr 30, 1996
Toner used in an image forming apparatus
RICOH KK9 citations74
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
5 patentsUS6973316B1Dec 6, 2005
Position detecting method and apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD42 citations93
US6738412B1May 18, 2004
Mobile communications device, communications system, and communications method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations93
US6708042B1Mar 16, 2004
Communication method and communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations93
US6373434B1Apr 16, 2002
Distance detecting method and its apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations93
US6820031B1Nov 16, 2004
Method and device for distance detection
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
YOSHINO KOGYOSHO CO LTD
4 patentsUS6513669B2Feb 4, 2003
Bottle for hot filling use, equipped with vacuum absorption panels in the body portion
YOSHINO KOGYOSHO CO LTD78 citations98
US5587405ADec 24, 1996
Ink compositions
YOSHINO KOGYOSHO CO LTD58 citations94
US5712022AJan 27, 1998
Printed thermoplastic resin products and method for printing such products
YOSHINO KOGYOSHO CO LTD28 citations91
US7165693B2Jan 23, 2007
Synthetic resin bottle-type container with improved deformation resistance
YOSHINO KOGYOSHO CO LTD22 citations90
HITACHI LTD
3 patentsKOMATSU MAKOTO
3 patentsUS8886095B2Nov 11, 2014
Powder container, powder supply device and image-forming apparatus
KOMATSU MAKOTO8 citations84
US8965250B2Feb 24, 2015
Cap, powder container, developer supply device, and image forming apparatus
KOMATSU MAKOTO8 citations83
US9405221B2Aug 2, 2016
Powder container and image forming apparatus incorporating same
KOMATSU MAKOTO5 citations72
KATOH TOMOMI
2 patentsHOSOKAWA HIROSHI
2 patentsYOSHIZAWA HIDEO
1 patentCOCA COLA CO
1 patentYAMAGUCHI DAICHI
1 patentOHYAMA KUNIHIRO
1 patentBANNAI AKIKO
1 patentYAMANE MASAYUKI
1 patentShowing the top 50 of 80 patents by PatentIndex Score.