Inventor

OIKAWA TATSUHIKO

JP13 patents

⚠️ This page may combine multiple inventors who share the name “OIKAWA TATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

3 patents

US6923520B2Aug 2, 2005

Head driving unit and an image forming apparatus using the same

RICOH KK36 citations92

US5029840AJul 9, 1991

Automatic sheet feeder for an image recording apparatus

RICOH KK27 citations92

US6147766ANov 14, 2000

Printing apparatus for increasing efficiency in transmitting image data between internal control units

RICOH KK5 citations62

RICOH CO LTD

3 patents

US7971878B2Jul 5, 2011

Sheet conveying device and image forming apparatus

RICOH CO LTD19 citations84

US8364071B2Jan 29, 2013

Image forming apparatus and sheet conveying device having upstream and downstream rollers

RICOH CO LTD5 citations73

US7945176B2May 17, 2011

Image forming apparatus including a gap forming unit

RICOH CO LTD3 citations62

NOGUCHI HIDETAKA

3 patents

US8126387B2Feb 28, 2012

Sheet conveying device and image forming apparatus

NOGUCHI HIDETAKA7 citations83

US8087670B2Jan 3, 2012

Sheet conveying device and image forming apparatus

NOGUCHI HIDETAKA6 citations72

US8131173B2Mar 6, 2012

Driving apparatus and image forming apparatus

NOGUCHI HIDETAKA2 citations62

HOSHINO SEIJI

1 patent

US8165498B2Apr 24, 2012

Image forming device

HOSHINO SEIJI11 citations82

HODOSHIMA TAKASHI

1 patent

US8422037B2Apr 16, 2013

Image forming apparatus

HODOSHIMA TAKASHI7 citations79

MATSUDA HIROMICHI

1 patent

US8538310B2Sep 17, 2013

Image transfer apparatus, image fixing apparatus, and registration apparatus which prevent a load torque variation upon entry or exit of a sheet into a nipping portion

MATSUDA HIROMICHI3 citations62

ANDOH TOSHIYUKI

1 patent

US8254811B2Aug 28, 2012

Image forming apparatus for controlling movement of a moving member

ANDOH TOSHIYUKI5 citations61