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Inventor

Kenichiro Oka

Inventor
Mito, JP

Overview

17→
Patents
1988–2018
Patent span
Chemistry
Primary field (CPC C)

Patents· 17 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry21%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds15%
Y02PClimate change mitigation technologies in the production or processing of goods15%
C07CAcyclic or carbocyclic compounds12%
H04NPictorial communication, e.g. television9%
B01FMixing, e.g. dissolving, emulsifying or dispersing6%
B41JTypewriters6%
C07DHeterocyclic compounds3%
C08LCompositions of macromolecular compounds3%
C12MApparatus for enzymology or microbiology3%
PatentTitleYear
10,011,812Culture control method, cell culture apparatus, and apparatus for evaluation of cellular characteristics20188,940,947'Glycerin purification method'20158,742,178'Process for synthesis of acrolein'20148,604,156'Device and method for producing polybutylene succinate'20138,558,035'Reaction process utilizing critical water'20138,450,531'Method for synthesizing acrolein'20138,198,392'Polymer producing method and apparatus and polymer degassing method and apparatus'20128,153,754'Equipment and method for producing polyhydroxycarboxylic acid'20128,106,150'Polylactide manufacturing apparatus and method for manufacturing polylactide'20127,723,540'Method and apparatus for producing polyhydroxy carboxylic acid'20107,421,267'Local public information system'20086,728,629'On-road reference point positional data delivery device'20045,444,544'Method of simulating color images'19955,377,013'Method of simulating color images'19945,220,412'Color signal converting circuit'19934,839,667'Platen for use in thermal printer'19894,780,729'Platen for use in thermal printer'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1995Based in Kamakura, JP· patent location history
2004–2018Based in Tokyo, JP· patent location history
2008–2014Patents assigned to OKA KENICHIRO (8)· patent assignee history
2010–2013Patents assigned to HITACHI PLANT TECHNOLOGIES LTD (6)· patent assignee history
2010–2012Based in Hitachi, JP· patent location history
2012–2014Patents assigned to KAMIKAWA MASAYUKI (7)· patent assignee history
2012–2014Patents assigned to MATSUO TOSHIAKI (7)· patent assignee history
2012–2014Patents assigned to KONDO TAKEYUKI (5)· patent assignee history
2012–2014Based in Mito, JP· patent location history
2015Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OKA KENICHIROself82008–2014
KAMIKAWA MASAYUKI72012–2014
MATSUO TOSHIAKI72012–2014
HITACHI PLANT TECHNOLOGIES LTD62010–2013
KONDO TAKEYUKI52012–2014
Locations
LocationPatentsSpan
Mito, JP62012–2014
Kamakura, JP51988–1995
Tokyo, JP32004–2018
Hitachi, JP22010–2012
Ibaraki, JP12015