Tsurugashima, Japan

Masayuki Iwasaki

This inventor holds 27 USPTO granted patents, plus 2 CIPO patents, primarily in Optical Devices. Top assignees: Pioneer Corporation, Pioneer Electronic Corporation, Fujitsu Corporation. Active years: 1989-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayuki Iwasaki. Retrieved from https://idiyas.com/inventor/masayuki-iwasaki-wzarmgj6

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

Calculating rank

% Patents Active = 66.7

 

Average Co-Inventor Count = 2.4

ph-index = 9

Forward Citations = 253(Granted Patents)


Location History:

  • Atsugi, JP (1989)
  • Zama, JP (1989 - 1992)
  • Iruma, JP (1992 - 1994)
  • Tsurugashima, JP (1998 - 2006)
  • Fujimino, JP (2010)
  • Saitama, JP (1993 - 2012)

Company Filing History:


Years Active: 1989-2012

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Areas of Expertise:
Optical Disk Drive
Aberration Correction
Liquid Crystal Display
Optical Pickup
Information Reproducing
Wave-Front Compensation
Chiral Nematic
Optical Write/Read Head
Projection-Type Display
Recording Medium
Tilt Amount Detection
Liquid Crystal Material
27 patents (USPTO):Explore Patents

Title: Innovations by Masayuki Iwasaki: A Pioneer in Optical Technology

Introduction

Masayuki Iwasaki, hailing from Tsurugashima, Japan, is a noted inventor with an impressive portfolio of 27 patents. His work primarily focuses on advancements in optical disk drives and liquid crystal technology, significantly enhancing data storage and retrieval processes.

Latest Patents

Iwasaki’s most recent patents showcase his ingenuity in optical technologies. One patent details an optical disk drive that employs an aberration correction mechanism, integrating a control use circuit and a pickup embedded with a liquid crystal element for real-time aberration adjustments. This innovative design allows for the correction of static astigmatism, enhancing the optical system's performance by storing and utilizing astigmatic data efficiently.

Another notable patent introduces a liquid crystal optical element featuring grouped concentric electrodes. This design includes a first and second group of concentric electrodes, aimed at correcting spherical aberration for various types of DVDs. By adjusting the voltage supplied to these electrodes, the system can effectively address aberrations present in both conventional and high-density optical media.

Career Highlights

Throughout his career, Masayuki Iwasaki has made significant contributions while working with prominent companies, particularly Pioneer Corporation and Pioneer Electronic Corporation. His role in these institutions has been pivotal in driving forward the innovation of optical technologies.

Collaborations

Iwasaki has collaborated with notable professionals, including Akihiro Mochizuki and Sakashi Ootaki. These partnerships have facilitated the development of groundbreaking technologies, further establishing Iwasaki's reputation as a key figure in the realm of optical innovations.

Conclusion

Masayuki Iwasaki's inventive spirit and commitment to advancing optical technology are evident through his extensive patent portfolio. His contributions not only enhance the functionality of optical devices but also pave the way for future innovations in this dynamic field.

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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