Inventor

Masaaki Morizumi

Inventor
Omiya, JP

Overview

19→
Patents
1984–2021
Patent span
Physics
Primary field (CPC G)

Patents· 19 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus30%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them21%
A61BDiagnosis15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
A61LMethods or apparatus for sterilising materials or objects in general3%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles3%
B60WConjoint control of vehicle sub-units of different type or different function3%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes3%
G07CTime or attendance registers3%
G08GTraffic control systems3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1985Patents assigned to ASAHI OPTICAL CO LTD (4)· patent assignee history
1984–1995Based in Tokyo, JP· patent location history
1990–1994Patents assigned to FUJI PHOTO FILM CO LTD (3)· patent assignee history
1990–2000Based in Omiya, JP· patent location history
1993–2000Patents assigned to FUJI PHOTO OPTICAL CO LTD (11)· patent assignee history
1993–1995Based in Ohmiya, JP· patent location history
2016Patents assigned to FUJIFILM CORP (1)· patent assignee history
2016Based in Ashigarakami-gun, JP· patent location history
2021Patents assigned to ASAHI CHEMICAL IND (1)· patent assignee history
2021Based in Menlo Park, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI PHOTO OPTICAL CO LTD111993–2000
ASAHI OPTICAL CO LTD41984–1985
FUJI PHOTO FILM CO LTD31990–1994
ASAHI CHEMICAL IND12021
FUJIFILM CORP12016
Locations
LocationPatentsSpan
Omiya, JP101990–2000
Tokyo, JP51984–1995
Ohmiya, JP21993–1995
Menlo Park, California, US12021
Ashigarakami-gun, JP12016