Inventor

Ritsuo Kashiyama

Inventor
Tokyo, JP

Overview

16→
Patents
1990–2013
Patent span
Physics
Primary field (CPC G)

Patents· 16 as inventor

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

G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them32%
G02BOptical elements, systems or apparatus25%
H02NElectric machines not otherwise provided for11%
H04NPictorial communication, e.g. television11%
G09GArrangements or circuits for control of indicating devices using static means to present variable information7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
B08BCleaning in general4%
H10NElectric solid-state devices not otherwise provided for4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2013Patents assigned to CANON KK (16)· patent assignee history
1990–1992Based in Kanagawa, JP· patent location history
1992–1995Based in Kawasaki, JP· patent location history
1994Based in Yokohama, JP· patent location history
2001Based in Kanagaw-ken, JP· patent location history
2002–2013Based in Tokyo, JP· patent location history
2012–2013Patents assigned to KASHIYAMA RITSUO (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK161990–2013
KASHIYAMA RITSUOself42012–2013
Locations
LocationPatentsSpan
Tokyo, JP92002–2013
Kawasaki, JP31992–1995
Kanagawa, JP21990–1992
Kanagaw-ken, JP12001
Yokohama, JP11994