Inventor

Hiromi Sakaguchi

Inventor

Kanagawa, JP

Overview

2013–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 18 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Dprimary

C09DCoating compositions, e.g. paints, varnishes or lacquers26%

G03GElectrography26%

B41JTypewriters23%

B41MPrinting, duplicating, marking, or copying processes14%

B05DProcesses for applying fluent materials to surfaces, in general3%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments3%

Y10TTechnical subjects covered by former us classification3%

PatentTitleYear

11,130,349Ink, method for producing ink, method for printing, and printer2021 10,723,142Image forming method, image forming apparatus, and method for manufacturing printed matter2020 10,603,929Drying device and image forming apparatus2020 10,457,079Ink, inkjet recording method, ink cartridge, and image recording device2019 10,301,492Method of using recorded matter, recorded matter, and method of manufacturing recorded matter2019 10,195,885Ink, inkjet recording method, ink cartridge, and image recording device2019 10,131,805Ink, ink stored container, inkjet recording apparatus, and printed matter2018 10,012,944Method for manufacturing cleaning blade, cleaning blade, image formation device, and process cartridge2018 9,938,421Set of ink and print medium, inkjet printing method, inkjet printing apparatus, printed matter, ink, and ink stored container2018 9,873,809Ink, image forming method, image forming apparatus, and recorded matter2018 9,395,676'Cleaning blade having an elastic body of segmented hardnesses, and image forming apparatus and process cartridge including the cleaning blade'2016 9,383,713'Cleaning blade, image forming apparatus, and process cartridge'2016 9,342,031'Cleaning blade, image forming apparatus and process cartridge'2016 9,244,423'Cleaning blade, and image forming apparatus and process cartridge using the cleaning blade'2016 9,244,424'Cleaning blade, image forming apparatus and process cartridge'2016 9,207,624'Cleaning blade, method for preparing the cleaning blade, and image forming apparatus and process cartridge using the cleaning blade'2015 8,557,489'Gallium phthalocyanine compound, gallium phthalocyanine composite pigment, method for preparing gallium phthalocyanine composite pigment, and electrophotographic photoconductor'2013 8,530,124'Hydroxygallium phthalocyanine composite pigment, electrophotographic photoconductor containing the same, and image forming device and process cartridge for image forming device using the same'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2021Patents assigned to RICOH CO LTD (18)· patent assignee history

2013–2020Patents assigned to SAKAGUCHI HIROMI (14)· patent assignee history

2013–2021Based in Kanagawa, JP· patent location history

2015–2020Patents assigned to TOYAMA KAORI (9)· patent assignee history

2015–2018Patents assigned to GOHDA SHOHEI (7)· patent assignee history

2015–2018Patents assigned to GONDOH MASANOBU (7)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH CO LTD	18	2013–2021
SAKAGUCHI HIROMIself	14	2013–2020
TOYAMA KAORI	9	2015–2020
GOHDA SHOHEI	7	2015–2018
GONDOH MASANOBU	7	2015–2018

Locations

Location	Patents	Span
Kanagawa, JP	18	2013–2021