Inventor

Dong Jun Ahn

Inventor

Seoul, KR

Overview

3→

Patents

2001–2019

Patent span

Electricity

Primary field (CPC H)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Fprimary

A61FFilters implantable into blood vessels8%

A61MDevices for introducing media into, or onto, the body8%

B02CCrushing, pulverising, or disintegrating in general8%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general8%

B82YSpecific uses or applications of nanostructures8%

C23CCoating metallic material8%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%

H02HEmergency protective circuit arrangements8%

H02KDynamo-electric machines8%

H03KPulse technique8%

PatentTitleYear

10,413,939Electronic vibrator2019 6,440,565'Biocompatible metallic materials grafted with sulfonated poly(ethylene oxide) and preparation thereof'2002 6,329,106'Repair method for phase shift mask in semiconductor device'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001Patents assigned to HYUNDAI ELECTRONICS IND (1)· patent assignee history

2001–2002Based in Seoul, KR· patent location history

2002Patents assigned to KOREA INST SCI & TECH (1)· patent assignee history

2019Patents assigned to FASCOENG LTD (1)· patent assignee history

2019Based in Boryeong-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FASCOENG LTD	1	2019
HYUNDAI ELECTRONICS IND	1	2001
KOREA INST SCI & TECH	1	2002

Locations

Location	Patents	Span
Seoul, KR	2	2001–2002
Boryeong-si, KR	1	2019