凹凸電子美國專利布局

表一　凹凸電子專利權人與公司所在地分佈

凹凸電子

專利權人國家（專利件數）

對應發明人國家

O2 Micro International Ltd.

• Cayman Islands（53）

• US（51）
• Taiwan（4）
• Japan（2）
• Singapore（1）

O2 Micro Inc.

• US（5）

• US（5）

Source: 本文整理

表三　主要IPC

IPC Code- 4 digit

Items

%

H02M Electricity; Generation, Conversion, or Distribution of Electric Power; Apparatus for Conversion BE

13

17.80%

G06F Physics; Instruments; Computing; Calculating; Counting (score computers for games

11

15.10%

H01M Electricity; Basic Electric Elements; Processes or Means, e.g. Batteries, for the Direct Conversion

8

11.00%

H05B Electricity; Electric Techniques Not Otherwise Provided For; Electric Heating; Electric Lighting NO

8

11.00%

G05F Physics; Instruments; Controlling; Regulating; Systems for Regulating Electric or Magnetic Variable

7

9.50%

H02J Electricity; Generation, Conversion, or Distribution of Electric Power; Circuit Arrangements or SYS

7

9.50%

G11B Physics; Instruments; Information Storage; Information Storage Based on Relative Movement Between R

3

4.10%

G01R Physics; Instruments; Measuring (counting G06M); Testing; Measuring Electric

2

2.70%

G09G Physics; Instruments; Educating; Cryptography; Display; Advertising; Seals; Arrangements or Circuit

2

2.70%

H02H Electricity; Generation, Conversion, or Distribution of Electric Power; Emergency Protective Circui

2

2.70%

H03F Electricity; Basic Electronic Circuitry; Amplifiers (measuring, testing G01R

2

2.70%

H03K Electricity; Basic Electronic Circuitry; Pulse Technique (measuring pulse characteristi

2

2.70%

表四　主要UPC

U.S. Class- 3 digit

Items

%

320 Electricity: Battery or Capacitor Charging or Discharging;

15

16.00%

363 Electric Power Conversion Systems;

13

13.80%

315 Electric Lamp and Discharge Devices: Systems;

12

12.80%

710 Electrical Computers and Digital Data Processing Systems: Input/Output;

10

10.60%

713 Electrical Computers and Digital Processing Systems: Support;

7

7.40%

323 Electricity: Power Supply or Regulation Systems;

6

6.30%

327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems;

5

5.30%

702 Data Processing: Measuring, Calibrating, or Testing;

3

3.10%

011

2

2.10%

112 Sewing;

2

2.10%

330 Amplifiers;

2

2.10%

345 Computer Graphics Processing and Selective Visual Display Systems;

2

2.10%

361 Electricity: Electrical Systems and Devices;

2

2.10%

369 Dynamic Information Storage or Retrieval;

2

2.10%

表五　Derwent Class（全部）

Derwent Class - all

Items

U24 Amplifiers and Low Power Supplies.

35

T01 Digital Computers.

26

X16 Electrochemical Storage.

14

U21 Logic Circuits, Electronic Switching and Coding.

12

X26 Lighting.

12

T04 Computer Peripheral Equipment.

10

W05 Alarms, Signalling, Telemetry and Telecontrol.

10

W01 Telephone and Data Transmission Systems.

9

U14 Memories, Film and Hybrid Circuits.

7

U22 Pulse Generation and Manipulation.

5

W03 TV and Broadcast Radio Receivers.

5

B02 Fused ring heterocyclics.

3

P85 Education, cryptography, adverts (G09).

2

U13 Integrated Circuits.

2

V04 Printed Circuits and Connectors.

2

V05 Valves, Discharge Tubes and CRTs.

2

W02 Broadcasting, Radio and Line Transmission Systems.

2

W04 Audio/Video Recording and Systems.

2

X12 Power Distribution/Components/Converters.

2

no class

1

S01 Electrical Instruments.

1

S03 Scientific Instrumentation.

1

T03 Data Recording.

1

T06 Process and Machine Control.

1

U11 Semiconductor Materials and Processes.

1

V01 Resistors and Capacitors.

1

W06 Aviation, Marine and Radar Systems.

1

X22 Automotive Electrics.

1

表六　主要Derwent Manual Code

Derwent Manual Code

Items

T01-L01 Power supplies, stand-by arrangements

14

U21-B05C Power converters and power switching

11

U21-B01B Switching using field effect transistors

9

U24-D02 DC-DC converters

9

U24-D01A3 For FETs

8

T01-M06A1A Hand-held: notepads, palm-tops, personal organisers

7

U24-D01A Generation of control voltages

7

U24-D05 DC-AC converter

7

X26-C01B2A Inverters

7

U14-K01A4C LCD illumination arrangements

6

W01-C01D3C Portable; hand-held

6

X16-G Battery chargers

6

X16-G01 Using ac mains

6

U24-E02 Feedback systems

5

U24-E02B For DC

5

X26-C01B5 For low pressure discharge lamps

5

表七　高被引證專利

U.S. References- patents cited by items in the set

Items

US5619402 Higher-efficiency cold-cathode fluorescent lamp power supply

14

US5615093 Current synchronous zero voltage switching resonant topology

12

US5875103 Full range soft-switching DC-DC converter

12

US5930121 Direct drive backlight system

12

US6114814 Apparatus for controlling a discharge lamp in a backlighted display

12