P

Inventor

HIRUMA KEI

JP28 patents
⚠️ This page may combine multiple inventors who share the name “HIRUMA KEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SEIKO EPSON CORP

22 patents
US7753474B2Jul 13, 2010

Droplet ejection apparatus, method for recovering droplet ejection head, method for forming thin film, and liquid crystal display

SEIKO EPSON CORP9 citations76
US7794781B2Sep 14, 2010

Film formation method, electro-optical device manufacturing method and electronic apparatus

SEIKO EPSON CORP2 citations62
US7535544B2May 19, 2009

Various methods of manufacture of electro-optical panels, etc. involving a device and method of discharging liquid drops of an alignment film in a single pass from plural nozzles of a drop discharge head

SEIKO EPSON CORP3 citations62
US7499143B2Mar 3, 2009

Liquid crystal discharging method, and liquid crystal discharging device

SEIKO EPSON CORP2 citations62
US7215406B2May 8, 2007

Device for arranging liquid drops, electro-optical panel, electro-optical device, electronic apparatus, method of arranging liquid drops, method of manufacturing electro-optical panel, and method of manufacturing electronic apparatus

SEIKO EPSON CORP4 citations62
US8383211B2Feb 26, 2013

Method of forming thin film

SEIKO EPSON CORP4 citations61
US11999180B2Jun 4, 2024

Recording method and recording device

SEIKO EPSON CORP0 citations60
US12344749B2Jul 1, 2025

Water-based composition and coloring method

SEIKO EPSON CORP0 citations59
US12091562B2Sep 17, 2024

Composition for aqueous ink jet and method for producing recorded product

SEIKO EPSON CORP0 citations59
US11976204B2May 7, 2024

Composition for aqueous ink jet

SEIKO EPSON CORP0 citations59
US11161352B2Nov 2, 2021

Ink jet textile printing ink

SEIKO EPSON CORP0 citations59
US12516214B2Jan 6, 2026

Coloring composition, coloring method, and pigment dispersion

SEIKO EPSON CORP0 citations58
US12291641B2May 6, 2025

Metal pigment composition and coloring method

SEIKO EPSON CORP0 citations58
US12264250B2Apr 1, 2025

Coloring composition and coloring method

SEIKO EPSON CORP0 citations58
US7748825B2Jul 6, 2010

Droplet discharge method, droplet discharge apparatus, manufacturing method for liquid crystal device, liquid crystal device, and electronic apparatus

SEIKO EPSON CORP1 citations52
US8991958B2Mar 31, 2015

Method of driving liquid ejection head and drive signal generation device for liquid ejection head

SEIKO EPSON CORP0 citations51
US7542126B2Jun 2, 2009

Droplet ejection apparatus, method for forming functional film, apparatus for forming liquid crystal alignment film, method for forming liquid crystal alignment film of liquid crystal display, and liquid crystal display

SEIKO EPSON CORP0 citations51
US7224418B2May 29, 2007

Method, program, and apparatus for manufacturing electrooptical panel, and method for manufacturing electronic device

SEIKO EPSON CORP0 citations51
US12109812B2Oct 8, 2024

Ink jet printing method and ink jet printing apparatus

SEIKO EPSON CORP0 citations49
US12305046B2May 20, 2025

Ink jet ink composition and ink jet printing method

SEIKO EPSON CORP0 citations47
US7816277B2Oct 19, 2010

Method for forming deposit, droplet ejection apparatus, electro-optic device, and liquid crystal display

SEIKO EPSON CORP0 citations41
US7713593B2May 11, 2010

Surface treatment method, manufacturing method of color filter substrate, and manufacturing method of electro-optical device

SEIKO EPSON CORP0 citations41

HIRUMA KEI

3 patents

KOMORI SADAHARU

2 patents

IDE KATSUYA

1 patent