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Universal Pioneer Corporation

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USPTO Granted Patents = 33

Forward Citations = 388

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25 inventors (with patents filed for the assignee):

Hitoshi Kanamaru (6 out of 32 patents)

Takashi Okano (5 out of 30 patents)

Toru Akiyama (4 out of 23 patents)

4. Koichi Suzuki (2 out of 4 patents)

5. Toshihiko Hosaka (2 out of 3 patents)

6. Minoru Kosaka (2 out of 9 patents)

7. Katsuharu Sato (2 out of 9 patents)

8. Keiji Masaki (2 out of 3 patents)

9. Tetsuo Shimizu (1 out of 12 patents)

10. Toshiyuki Amaya (1 out of 4 patents)

11. Tadashi Funabashi (1 out of 13 patents)

12. Fumitaka Kotaka (1 out of 5 patents)

13. Hiroaki Tsuboi (1 out of 1 patent)

14. Yositugu Araki (1 out of 1 patent)

15. Tutomu Fukui (1 out of 1 patent)

Core Competencies:

Video Disc Recording

Optical Pickup Device

Tracking Servo System

Information Reproducing

Focus Servo Control

Crosstalk Elimination

Disk Clamping Device

Time Base Correction

Drive Mechanism

Signal Reading Device

Angular Modulation

Beam Splitter

33 patents: Sort by Forward Citations

1. 4564867 - Video disc recording and reproducing device for video discs having (1986-01-14),

2. 4528599 - FM angular modulation system for video signal recording (1985-07-09),

3. 4516160 - Information recording and reproducing system (1985-05-07),

4. 4512005 - Information reproducing apparatus in a recording disc player (1985-04-16),

5. 4512002 - Tracking servo system of recording disc information recording and (1985-04-16),

6. 4510592 - Disk clamping device (1985-04-09),

7. 4498158 - Address data searching method for data recording medium reproducing (1985-02-05),

8. 4494154 - Pickup control device and method for fast or slow reproduction in a disk (1985-01-15),

9. 4477838 - Tangential error signal generator in PAL type video disc player (1984-10-16),

10. 4476499 - Video disc recording and reproducing system (1984-10-09),

11. 4475182 - Focus servo control system for automatically adjusting a relative (1984-10-02),

12. 4459621 - High frequency crosstalk eliminating circuit in video disc reproducing (1984-07-10),

13. 4442516 - Drive mechanism for disc player with bearing supported slider (1984-04-10),

14. 4429378 - Optical pickup device for use in a video and/or audio disc player (1984-01-31),

15. 4425583 - Video disc player having time base variations eliminated in both audio (1984-01-10),

Company Overview

Universal Pioneer Corporation, based in Tokyo, specializes in advanced technology solutions across various sectors, including electronics, telecommunications, and automotive engineering. The company is dedicated to innovation, focusing on the development of cutting-edge products and systems that enhance connectivity and efficiency. With a commitment to research and development, Universal Pioneer aims to lead in emerging technologies, contributing to the evolution of smart devices and integrated systems in a rapidly changing global landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

33 Patents

#1,022 in Tokyo

#2,202 in Japan

#20,162 in the World

Universal Pioneer Corporation

Forward Citations = 388

25 inventors:

Hitoshi Kanamaru (6 out of 32 patents)

Takashi Okano (5 out of 30 patents)

Toru Akiyama (4 out of 23 patents)

4. Koichi Suzuki (2 out of 4 patents)

5. Toshihiko Hosaka (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Universal Pioneer Corporation. Retrieved from https://idiyas.com/company/universal-pioneer

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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