Inventor
OHTA TOKUYA
34 patents
⚠️ This page may combine multiple inventors who share the name “OHTA TOKUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
33 patentsUS4597794AJul 1, 1986
Recording process and a recording liquid thereof
CANON KK413 citations99
US4368476AJan 11, 1983
Ink jet recording head
CANON KK161 citations99
US5718793AFeb 17, 1998
Image forming process and printed article
CANON KK71 citations96
US4410899AOct 18, 1983
Method for forming liquid droplets
CANON KK139 citations94
US6357845B1Mar 19, 2002
Leather coloring process, leather coloring apparatus and colored leather produced by such process
CANON KK15 citations93
US6325498B1Dec 4, 2001
Ink tank with ink absorbing member
CANON KK19 citations93
US6109742AAug 29, 2000
Ink tank, head cartridge and ink jet printing apparatus
CANON KK17 citations93
US6022383AFeb 8, 2000
Processes for coloring leather by an ink-jet printing method using anionic coloring agents and cationic agents, and leather products obtained therewith
CANON KK41 citations93
US5652610AJul 29, 1997
Ink tank, ink tank-integrated head cartridge having the tank and ink head constructed integrally, and ink jet printing apparatus having the ink tank or head cartridge
CANON KK53 citations93
US5409529AApr 25, 1995
Ink, and ink-jet recording method and instrument using the same
CANON KK45 citations93
US4517244AMay 14, 1985
Recording medium and ink jet recording paper
CANON KK46 citations93
US4426226AJan 17, 1984
Recording liquid
CANON KK40 citations93
US4395288AJul 26, 1983
Liquid recording medium
CANON KK31 citations93
US4395287AJul 26, 1983
Liquid recording material
CANON KK54 citations93
US4338611AJul 6, 1982
Liquid jet recording head
CANON KK35 citations93
US4325735AApr 20, 1982
Recording liquid composition
CANON KK42 citations93
US4281329AJul 28, 1981
Liquid recording medium
CANON KK43 citations93
US4841037AJun 20, 1989
Amino sulfonaphtholtrisazo compounds and recording liquids containing the same
CANON KK31 citations92
US4683002AJul 28, 1987
Liquid composition and method for recording
CANON KK45 citations92
US4285575AAug 25, 1981
Image display device
CANON KK41 citations92
US6224200B1May 1, 2001
Ink tank with ink absorbing member having particular holes or slits
CANON KK12 citations82
US6174053B1Jan 16, 2001
Ink tank, head cartridge and ink jet printing apparatus
CANON KK12 citations82
US4724001AFeb 9, 1988
Disazoic dye and recording liquid containing the same
CANON KK24 citations82
US4655834AApr 7, 1987
Recording process
CANON KK18 citations82
US4373954AFeb 15, 1983
Recording liquid and method for producing the same
CANON KK23 citations82
US4361842ANov 30, 1982
Recording method using film forming liquid composition
CANON KK22 citations82
US4295889AOct 20, 1981
Recording liquid composition
CANON KK25 citations81
US5542970AAug 6, 1996
Monoazo compound and recording liquid containing the same
CANON KK16 citations74
US4212518AJul 15, 1980
Image display device
CANON KK11 citations74
US6200676B1Mar 13, 2001
Ink jet recording medium
CANON KK9 citations72
US5447562ASep 5, 1995
Ink, ink-jet recording method making use of the ink, instrument provided with the ink and production method of the ink
CANON KK5 citations63
US4756757AJul 12, 1988
Recording liquid
CANON KK3 citations63
US4655835AApr 7, 1987
Process for evaluating the solubility of a colorant
CANON KK3 citations63