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Inventor

Ryoji Ohba

Inventor
Sapporo, JP

Overview

3→
Patents
1988–2012
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
G06TImage data processing or generation, in general20%
G08BSignalling systems, e.g. personal calling systems20%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light20%
H04BTransmission20%
PatentTitleYear
8,144,928'Object monitoring method, object monitoring apparatus, and object monitoring program storage medium'20125,798,459'Subject identification method, apparatus and system'19984,751,477'Semiconductor laser light modulation and demodulation system'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2012Based in Sapporo, JP· patent location history
1998Patents assigned to JAPAN GOVERNMENT (1)· patent assignee history
1998Patents assigned to KOA OIL CO LTD (1)· patent assignee history
2012Patents assigned to HAYASHI ISAO (1)· patent assignee history
2012Patents assigned to KANSAI COKE & CHEMICALS CO LTD (1)· patent assignee history
2012Patents assigned to OHBA RYOJI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HAYASHI ISAO12012
JAPAN GOVERNMENT11998
KANSAI COKE & CHEMICALS CO LTD12012
KOA OIL CO LTD11998
OHBA RYOJIself12012
Locations
LocationPatentsSpan
Sapporo, JP31988–2012