Inventor
Tomio Nakaya
Inventor
Yokohama, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Kprimary
G06KGraphical data reading33%
H01JElectric discharge tubes or discharge lamps33%
G07CTime or attendance registers17%
H10HInorganic light-emitting semiconductor devices having potential barriers17%
PatentTitleYear
5,998,921'Fluorescent lamp with coil shaped internal electrode'19995,929,564'Fluorescent lamp'19994,937,591'Apparatus for correcting quantity of light from optical printer'19904,853,524'Optical identification card system'19894,510,515'Epitaxial wafer of compound semiconductor display device'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1999Patents assigned to STANLEY ELECTRIC CO LTD (4)· patent assignee history
1985Patents assigned to MITSUBISHI MONSANTO CHEM (1)· patent assignee history
1985–1990Based in Yokohama, JP· patent location history
1990Patents assigned to RICOH KK (1)· patent assignee history
1999Based in Yokohama-shi, Kanagawa, JP· patent location history
1999Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| STANLEY ELECTRIC CO LTD | 4 | 1985–1999 |
| MITSUBISHI MONSANTO CHEM | 1 | 1985 |
| RICOH KK | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 3 | 1985–1990 |
| Yokohama-shi, Kanagawa, JP | 1 | 1999 |
| Kanagawa, JP | 1 | 1999 |