Inventor

Katsumi Tokuyama

Inventor

Osaka, JP

Overview

7→

Patents

1989–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 7 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television29%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for12%

H01LSemiconductor devices12%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation12%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution12%

G07FCoin-freed or like apparatus6%

G09GArrangements or circuits for control of indicating devices using static means to present variable information6%

H04MTelephonic communication6%

H04WWireless communication networks6%

PatentTitleYear

10,847,556Solid-state imaging apparatus and imaging apparatus2020 10,685,997Solid-state imaging apparatus and imaging apparatus2020 7,598,984'Image signal processing circuit'2009 7,538,806'Shading correction method and system and digital camera'2009 7,321,250'Integrated circuit device'2008 6,256,501'Cellular mobile telecommunications system for controlling a hand-off by a mobile station'2001 4,845,740'Radiotelephone system adapted to read a credit card'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2001Patents assigned to OKI ELECTRIC IND CO LTD (2)· patent assignee history

1989–2001Based in Tokyo, JP· patent location history

2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (1)· patent assignee history

2008–2020Based in Osaka, JP· patent location history

2009Patents assigned to PANASONIC CORP (2)· patent assignee history

2009Based in Ibaraki, JP· patent location history

2020Patents assigned to PANASONIC IP MAN CO LTD (2)· patent assignee history

2020Patents assigned to PANASONIC SEMICONDUCTOR SOLUTIONS CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
OKI ELECTRIC IND CO LTD	2	1989–2001
PANASONIC CORP	2	2009
PANASONIC IP MAN CO LTD	2	2020
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	1	2008
PANASONIC SEMICONDUCTOR SOLUTIONS CO LTD	1	2020

Locations

Location	Patents	Span
Osaka, JP	4	2008–2020
Tokyo, JP	2	1989–2001
Ibaraki, JP	1	2009