Shigehiko Ikeguchi

This inventor holds 5 USPTO granted patents. Top assignees: Sanyo Electric Co., Ltd., Tokyo Sanyo Electric Co., Sanyo Vending Machine Co., Ltd.. Active years: 1977-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigehiko Ikeguchi. Retrieved from https://idiyas.com/inventor/shigehiko-ikeguchi

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 5

Forward Citations = 46(Granted Patents)

Location History:

Oora, JA (1977)
Gunma, JP (1979 - 1980)
Oora, JP (1979 - 1983)

Company Filing History:

5 out of 8,782

Sanyo Electric Co., Ltd.

patents

5 out of 69

Tokyo Sanyo Electric Co.

patents

1 out of 1

Sanyo Vending Machine Co., Ltd.

patent

where one patent can have more than one assignee

Years Active: 1977-1983

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4394778 - Tuning control apparatus of receiver (1983-07-19),

2. 4220922 - Preset tuner (1980-09-02),

3. 4153884 - Frequency synthesizer for transmitter/receiver using a phase locked loop (1979-05-08),

4. 4149125 - Frequency synthesizer for transmitter receiver using a phase locked loop (1979-04-10),

5. 4056181 - System and method for determining vendibility in automatic vending (1977-11-01),

Title: Biography of Shigehiko Ikeguchi

Introduction

Shigehiko Ikeguchi is a notable inventor based in Oora, Japan. He has made significant contributions to the field of electronics, particularly in tuning control apparatuses and preset tuners. With a total of five patents to his name, his work has had a lasting impact on the industry.

Latest Patents

Ikeguchi's latest patents include a tuning control apparatus of a receiver and a preset tuner. The tuning control apparatus utilizes a voltage-controlled oscillator and a phase-locked loop to enhance reception quality. The preset tuner is designed to select desired channels from a plurality of preset options, incorporating a memory system and a digital/analog converter for optimal performance.

Career Highlights

Throughout his career, Ikeguchi has worked with prominent companies such as Sanyo Electric Co., Ltd. and Tokyo Sanyo Electric Co. His experience in these organizations has allowed him to develop innovative solutions that address the needs of modern electronics.

Collaborations

Ikeguchi has collaborated with esteemed colleagues, including Norio Yamashita and Eiji Matsuda. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field.

Conclusion

Shigehiko Ikeguchi's contributions to electronics through his patents and collaborations have established him as a respected figure in the industry. His innovative

Profile summary based on public USPTO records.

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]