Inventor

Katsuhiko Sugiyama

Inventor
Tokyo, JP

Overview

21→
Patents
1982–2019
Patent span
Human necessities
Primary field (CPC A)

Patents· 21 as inventor

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

A61Fprimary
A61FFilters implantable into blood vessels38%
F02BInternal-combustion piston engines10%
Y02TClimate change mitigation technologies related to transportation10%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof7%
G06KGraphical data reading7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
A01GHorticulture3%
B41JTypewriters3%
F02FCylinders, pistons or casings, for combustion engines3%
G01FMeasuring volume, volume flow, mass flow or liquid level3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1987Patents assigned to TOYODA CHUO KENKYUSHO KK (6)· patent assignee history
1982–2008Based in Aichi, JP· patent location history
2007–2010Based in Kasugai, JP· patent location history
2009–2018Patents assigned to OJI NEPIA CO LTD (8)· patent assignee history
2009–2013Patents assigned to OJI PAPER CO (8)· patent assignee history
2009–2018Based in Tokyo, JP· patent location history
2011–2014Patents assigned to SUGIYAMA KATSUHIKO (5)· patent assignee history
2011–2013Patents assigned to TASHIRO IZUMI (4)· patent assignee history
2014Based in Nagano, JP· patent location history
2018–2019Based in Matsumoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OJI NEPIA CO LTD82009–2018
OJI PAPER CO82009–2013
TOYODA CHUO KENKYUSHO KK61982–1987
SUGIYAMA KATSUHIKOself52011–2014
TASHIRO IZUMI42011–2013
Locations
LocationPatentsSpan
Tokyo, JP72009–2018
Aichi, JP71982–2008
Matsumoto, JP22018–2019
Kasugai, JP22007–2010
Nagano, JP12014