Inventor
Lang-Fu Tsai
Inventor
Hsinchu, TW
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B29Cprimary
B29CShaping or joining of plastics50%
B22DCasting of metals13%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form13%
G02BOptical elements, systems or apparatus13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
6,619,944'Sensing and reckoning mechanism for injection machine'20036,604,830'Color wheel'20036,416,607'Automatic embossing device for plastic floor tile'20026,371,196'Injection molding apparatus'20026,004,490'Method of using an improved clamping unit in an injection molding machine'19995,421,712'Screw rotating and advancing device for an injection molding machine'19955,370,524'Clamping unit and method for an injection molding machine'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–2003Patents assigned to IND TECH RES INST (6)· patent assignee history
1994–2003Based in Hsinchu, TW· patent location history
2003Patents assigned to YOUNG OPTICS INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IND TECH RES INST | 6 | 1994–2003 |
| YOUNG OPTICS INC | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 7 | 1994–2003 |