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For the Inventor, By the Inventor

Kawagoe, Japan

Shouzaburou Sakaguchi

This inventor holds 7 USPTO granted patents. Top assignee: Pioneer Electronic Corporation. Active years: 1983-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shouzaburou Sakaguchi. Retrieved from https://idiyas.com/inventor/shouzaburou-sakaguchi

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 4

Forward Citations = 35(Granted Patents)


Location History:

  • Kawagoe, JP (1983 - 1985)
  • Saitama, JP (1984 - 1986)

Company Filing History:

goldMedal7 out of 2,861 
 
Pioneer Electronic Corporation
 patents

Years Active: 1983-1986

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7 patents (USPTO):Explore Patents
1. 4580179 - Playback search control device for a tape recorder (1986-04-01),
2. 4551774 - Method for selecting desired piece of information recorded in magnetic (1985-11-05),
3. 4463393 - Repeat playback device for tape recorder (1984-07-31),
4. 4441127 - Tape drive device in recording and reproducing device (1984-04-03),
5. 4423443 - Automatic-reversing tape deck (1983-12-27),
6. 4413291 - Cassette tape player-recorder (1983-11-01),
7. 4404604 - Device for detecting a non-recorded segment on magnetic tape (1983-09-13),

Title: Shouzaburou Sakaguchi: Innovator in Magnetic Tape Technology

Introduction

Shouzaburou Sakaguchi is a notable inventor based in Kawagoe, Japan. He has made significant contributions to the field of magnetic tape technology, holding a total of 7 patents. His innovative work has advanced the functionality of tape recorders, enhancing user experience and operational efficiency.

Latest Patents

Sakaguchi's latest patents include a playback search control device for a tape recorder. This device allows for precise control during forward cue operations by counting clock pulses until a predetermined number indicates a blank tape portion. The forward cue continues with only audio pulses being counted until the next recorded tape portion is detected. Additionally, he developed a method for selecting a desired piece of information recorded in magnetic tape. This method enables users to efficiently find and play specific segments of information while utilizing various operational modes of the tape recorder.

Career Highlights

Sakaguchi has dedicated his career to innovation in audio technology. His work at Pioneer Electronic Corporation has positioned him as a key figure in the development of advanced tape recording systems. His inventions have not only improved playback mechanisms but have also contributed to the overall evolution of audio recording technology.

Collaborations

Sakaguchi has collaborated with fellow inventor Yoshiharu Ueki, working together to push the boundaries of magnetic tape technology. Their combined efforts have led to significant advancements in the field.

Conclusion

Shouzaburou Sakaguchi's contributions to magnetic tape technology have made a lasting impact on the industry. His innovative patents and collaborative efforts continue to influence the evolution of audio recording systems.

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]
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