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For the Inventor, By the Inventor

Tokorozawa, Japan

Junji Tanaka

This inventor holds 5 USPTO granted patents. Top assignee: Pioneer Corporation. Active years: 2002-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junji Tanaka. Retrieved from https://idiyas.com/inventor/junji-tanaka-6o9kosfp

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 20.0

Average Co-Inventor Count = 1.8

ph-index = 4

Forward Citations = 22(Granted Patents)


Location History:

  • Saitama, JP (2002)
  • Saitama-ken, JP (2004)
  • Tokorozawa, JP (2005)

Company Filing History:

goldMedal5 out of 2,680 
 
Pioneer Corporation
 patents

Years Active: 2002-2005

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5 patents (USPTO):Explore Patents
1. 6956800 - Pre-pit detecting apparatus detecting pre-pit signal from only signals input during period of applying light beam having reproducing power (2005-10-18),
2. 6891784 - Apparatus and method for re-executing pre-pit detection if pre-pits are not detected after changing reference level (2005-05-10),
3. 6757233 - Pre-pit detecting device and binarizing level setting method (2004-06-29),
4. 6466533 - Prepit detection unit (2002-10-15),
5. 6337838 - Prepit detection unit (2002-01-08),

Title: Innovations by Junji Tanaka

Introduction

Junji Tanaka is a prominent inventor based in Tokorozawa, Japan. He has made significant contributions to the field of optical disc technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and accuracy of information recording and reproduction processes.

Latest Patents

Tanaka's latest patents include a pre-pit detecting apparatus that identifies pre-pit signals from inputs during the application of a light beam with reproducing power. This invention allows for the detection of pre-pits by using two different light beams, optimizing the reading process of recorded information on optical media. Another notable patent involves an apparatus and method for re-executing pre-pit detection if pre-pits are not initially detected. This innovation improves the reliability of information recording by adjusting the reference level for pre-pit signal detection.

Career Highlights

Junji Tanaka is currently employed at Pioneer Corporation, a leading company in the electronics and audio-visual industry. His work has significantly advanced the capabilities of optical disc technology, contributing to the development of more efficient recording and playback systems.

Collaborations

Tanaka has collaborated with notable colleagues such as Shin Akabane and Hiroshi Hikima. Their combined expertise has fostered innovative solutions in the field of optical technology.

Conclusion

Junji Tanaka's contributions to optical disc technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in information recording and reproduction.

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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