P

Inventor

TOMIZAWA KEIJI

JP58 patents
⚠️ This page may combine multiple inventors who share the name “TOMIZAWA KEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CANON KK

39 patents
US6830317B2Dec 14, 2004

Ink jet recording head

CANON KK77 citations98
US6984026B2Jan 10, 2006

Ink jet record head

CANON KK26 citations93
US6971736B2Dec 6, 2005

Ink jet record head

CANON KK29 citations93
US9156263B2Oct 13, 2015

Liquid ejection head and method of producing the same

CANON KK8 citations84
US7963635B2Jun 21, 2011

Inkjet print head

CANON KK11 citations84
US7832843B2Nov 16, 2010

Liquid jet head

CANON KK10 citations84
US7784904B2Aug 31, 2010

Liquid jet head

CANON KK8 citations84
US7591537B2Sep 22, 2009

Ink jet recording head

CANON KK8 citations84
US7556330B2Jul 7, 2009

Recording apparatus and recording method

CANON KK13 citations84
US7628472B2Dec 8, 2009

Ink-jet recording head

CANON KK7 citations74
US6935723B2Aug 30, 2005

Ink jet recording head

CANON KK7 citations74
US9731503B2Aug 15, 2017

Liquid discharge head and liquid discharge apparatus using the same

CANON KK2 citations73
US8985721B2Mar 24, 2015

Printing apparatus and aging method

CANON KK4 citations73
US7735962B2Jun 15, 2010

Ink jet print head

CANON KK7 citations73
US10308018B2Jun 4, 2019

Printing apparatus and method of controlling printhead

CANON KK3 citations72
US7980663B2Jul 19, 2011

Liquid ejection head

CANON KK4 citations63
US7938511B2May 10, 2011

Liquid ejection head, inkjet printing apparatus and liquid ejecting method

CANON KK5 citations63
US7654648B2Feb 2, 2010

Liquid recording head

CANON KK2 citations63
US7090334B2Aug 15, 2006

Ink jet record head

CANON KK4 citations63
US8342631B2Jan 1, 2013

Inkjet print apparatus and inkjet print method

CANON KK3 citations62
US7963633B2Jun 21, 2011

Ink jet recording head and ink jet recording apparatus

CANON KK2 citations62
US7771026B2Aug 10, 2010

Ink jet recording head and liquid jetting method

CANON KK3 citations62
US7695088B2Apr 13, 2010

Ink jet printing apparatus and ink jet printing method

CANON KK6 citations62
US12576643B2Mar 17, 2026

Liquid ejection apparatus, method for controlling liquid ejection apparatus, and storage medium

CANON KK0 citations58
US12576636B2Mar 17, 2026

Liquid discharge head

CANON KK0 citations52
US12023924B2Jul 2, 2024

Liquid ejection apparatus and control method

CANON KK0 citations52
US11712891B2Aug 1, 2023

Liquid ejection head and liquid ejection apparatus

CANON KK0 citations52
US11597203B2Mar 7, 2023

Liquid ejection head including a plurality of recording element substrates formed adjacent to each other to form an array such that a gap in temperature distribution is prevented

CANON KK0 citations52
US11077658B2Aug 3, 2021

Liquid ejection head and method of manufacturing the same

CANON KK0 citations52
US10322578B2Jun 18, 2019

Liquid ejection head and liquid ejection apparatus

CANON KK0 citations52
US9969163B2May 15, 2018

Liquid discharge head

CANON KK1 citations52
US8033651B2Oct 11, 2011

Liquid ejection head and printing apparatus

CANON KK1 citations52
US7984976B2Jul 26, 2011

Liquid recording head

CANON KK1 citations52
USRE40994ENov 24, 2009

Ink jet recording head

CANON KK1 citations52
US9889650B2Feb 13, 2018

Liquid ejecting head, ejecting element substrate and liquid ejecting apparatus

CANON KK1 citations51
US9044944B2Jun 2, 2015

Liquid discharge head and method of making the same

CANON KK0 citations51
US12145359B2Nov 19, 2024

Liquid ejection apparatus and control method

CANON KK0 citations47
US12053979B2Aug 6, 2024

Liquid ejection apparatus and control method

CANON KK0 citations46
US9283755B2Mar 15, 2016

Liquid ejection head

CANON KK0 citations42

TOMIZAWA KEIJI

4 patents

OIKAWA MASAKI

2 patents

AKAMA YUICHIRO

1 patent

KURODA TOMOTSUGU

1 patent

KYOSHIMA MASAYUKI

1 patent

MATSUMOTO MITSUHIRO

1 patent

MURAOKA CHIAKI

1 patent

Showing the top 50 of 58 patents by PatentIndex Score.