Inventor
Yeon-Sik Chae
Inventor
Seoul, KR
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Sprimary
G01SRadio direction-finding18%
A61FFilters implantable into blood vessels9%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body9%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
G01VGeophysics9%
G08BSignalling systems, e.g. personal calling systems9%
G08GTraffic control systems9%
G09BEducational or demonstration appliances9%
H10DInorganic electric semiconductor devices9%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h109%
PatentTitleYear
7,336,226'Object identification system combined with millimeter-wave passive image system and global positioning system (GPS) for the blind'20086,734,528'Transistor with pi-gate structure and method for producing the same'20046,570,956'Searching system using X-ray and millimeter-wave signal'2003Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2003–2008Based in Seoul, KR· patent location history
2008Patents assigned to UNIV DONGGUK IND ACAD COOP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV DONGGUK IND ACAD COOP | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seoul, KR | 3 | 2003–2008 |