1
Hidehiko Komatsu, Hideo Yamazaki, Tatsuya Ito, Hiromu Hirabayashi: Method and device for ink jet recording. Seiko Epson Corporation, Ladas & Parry, May 9, 2000: US06059407 (52 worldwide citation)

An intermediate transfer ink jet recording method comprising forming an ink image on an intermediate transfer medium by ink jet recording and then transferring the ink image from the intermediate transfer medium onto a recording medium, which method enables an excellent image to be formed on the int ...


2
Hidehiko Komatsu, Hiroto Nakamura, Hitoshi Ohta, Masahiro Yatake, Kazuhiko Hara: Method for manufacturing pigment dispersion, pigment dispersion obtained by this method, and ink jet recording ink using same. Seiko Epson Corporation, Ladas & Parry, February 25, 2003: US06524383 (28 worldwide citation)

Disclosed is a pigment dispersion that can be used for an ink jet printing-use pigment ink that affords stable printing characteristics and has excellent storage stability in an ink jet printer having a head driven at a high frequency and having finer nozzles in order to enhance image quality and ra ...


3
Hidehiko Komatsu, Hiroto Nakamura: Ink jet recording method and ink composition for use in said method. Seiko Epson Corporation, Ladas & Parry, April 30, 2002: US06379443 (24 worldwide citation)

Disclosed is an ink jet recording method which can efficiently realize good images, particularly an ink jet recording method which can realize, on plain papers, high-quality prints free from feathering or color-to-color mixing at a relatively low heating temperature, and an ink composition for use i ...


4
Hidehiko Komatsu, Hiroto Nakamura, Masahiro Yatake, Hiroko Hayashi, Makoto Matsuzaki, Fumitsugu Ito, Hitoshi Ohta: Ink for ink-jet recording and process for producing the same, ink set for ink-jet recording, and ink cartridge. Seiko Epson Corporation, Ladas & Parry, October 12, 2004: US06802893 (22 worldwide citation)

An ink for ink jet recording including at least a particulate pigment having a sulfur-containing dispersibility providing group chemically bonded to the pigment surface with a treatment containing sulfur, a penetrating agent and a liquid component including water. In one embodiment, the liquid compo ...


5
Hitoshi Ota, Hidehiko Komatsu, Kazuhiko Hara, Masahiro Yatake: Process for the preparation of pigment dispersion, pigment dispersion obtained by the same, ink jet recording ink comprising the same, and recording method and recorded material using the same. Seiko Epson Corporation, Ladas & Parry, July 12, 2005: US06916862 (21 worldwide citation)

Provided is a process for the preparation of a pigment dispersion which comprises a pigment surface treatment step of introducing at least one hydrophilic dispersibility-providing group onto the surface of a pigment directly and/or with the interposition of a polyvalent group, and a dispersion step ...


6
Hiroto Nakamura, Michinari Tsukahara, Hideo Yamazaki, Hidehiko Komatsu, Yoshiyuki Ozawa, Kazutoshi Fujisawa, Kenichi Kanbayashi: Ink composition for ink jet recording and ink jet recording process. Seiko Epson Corporation, Sughrue Mion Zinn Macpeak & Seas PLLC, September 5, 2000: US06114411 (21 worldwide citation)

An ink composition for ink jet recording is described comprising a pigment, a resin dispersant, a thermoplastic resin emulsion and water, wherein the weight ratio of the pigment to the resin dispersant is from 20:1 to 5:2. The foregoing ink composition is little susceptible to irregular bleeding on ...


7
Hiroto Nakamura, Toshiyuki Miyabayashi, Masahiro Yatake, Hidehiko Komatsu: Microencapsulated pigment, production process therefor, aqueous dispersion and ink jet recording ink. Seiko Epson Corporation, Ladas & Parry, July 11, 2006: US07074843 (19 worldwide citation)

Provided are ink jet ink excellent in dispersion stability and ejection stability and capable of forming images with fastness, abrasion resistance, color developability, and high density with little feathering; a microencapsulated pigment (MCP) providing the ink and a process of making the same; and ...


8
Hideo Yamazaki, Michinari Tsukahara, Hiroto Nakamura, Hidehiko Komatsu: Ink composition for ink jet recording, process for the preparation thereof, and ink jet recording process using said ink composition. Seiko Epson Corporation, Sughrue Mion PLLC, November 18, 2003: US06648953 (19 worldwide citation)

The present invention provides an ink composition for an ink jet recording process, which exhibits excellent print quality with good water fastness and light fastness and without flying in deflected directions from the ink head or nozzle fill-in even after a prolonged ink jet printing. The ink compr ...


9
Fumitsugu Ito, Masahiro Yatake, Hidehiko Komatsu, Hitoshi Ota, Kazuhiko Hara: Coating liquid, and image recording method and recording using same. Seiko Epson Corporation, Ladas & Parry, April 20, 2004: US06723784 (17 worldwide citation)

A coating liquid for forming a transparent topcoat, without requiring a hardening or fixing process that uses heating or UV radiation. The coating liquid imparts light resistance, water resistance, fixation, and glossiness to recordings. Also, a recording method using the coating liquid, and recordi ...


10
Hiroto Nakamura, Hidehiko Komatsu, Akio Owatari: Sublimation transfer ink jet recording method and ink composition for use therein. Seiko Epson Corporation, Ladas & Parry, June 25, 2002: US06409330 (12 worldwide citation)

Disclosed are an ink composition which can satisfy, on a high level, various property requirements for ink compositions for use in ink jet recording (e.g., excellent ejection stability and realization of images free from feathering or color-to-color bleeding) and can realize good images by sublimati ...