Inventor
Shiro Shichijyo
Inventor
Sodegaura, JP
Overview
Patents· 3 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 therein60%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light40%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998Patents assigned to MITSUI PETROCHEMICAL IND (1)· patent assignee history
1998–2004Based in Sodegaura, JP· patent location history
1999–2004Patents assigned to MITSUI CHEMICALS INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUI CHEMICALS INC | 2 | 1999–2004 |
| MITSUI PETROCHEMICAL IND | 1 | 1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sodegaura, JP | 3 | 1998–2004 |