Inventor

Fuminao Matsumoto

Inventor
Hino, JP

Overview

5→
Patents
1998–2002
Patent span
Physics
Primary field (CPC G)

Patents· 5 as inventor

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

G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein57%
G02BOptical elements, systems or apparatus29%
G09GArrangements or circuits for control of indicating devices using static means to present variable information14%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2002Patents assigned to RICOH KK (5)· patent assignee history
1998–2000Based in Hino, JP· patent location history
1999–2000Based in Tokyo, JP· patent location history
2002Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK51998–2002
Locations
LocationPatentsSpan
Hino, JP21998–2000
Tokyo, JP21999–2000
Yokohama, JP12002