Inventor
Kiyoshi Ichimura
Inventor
Tokyo, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus40%
B29CShaping or joining of plastics10%
B29DProducing particular articles from plastics or from substances in a plastic state10%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light10%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%
G01SRadio direction-finding10%
H03GControl of amplification10%
PatentTitleYear
4,997,259'Light source system with uniforming device for optical fiber type lightguide'19914,984,859'Optical fiber ribbon end-structure'19914,942,292'Apparatus for following sun light'19904,934,787'Mode scrambler'19904,929,169'Working equipment for roughening the side of optical fiber'19904,916,406'Automatic gain control circuit'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1991Patents assigned to MITSUBISHI RAYON CO (6)· patent assignee history
1990–1991Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI RAYON CO | 6 | 1990–1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 6 | 1990–1991 |