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For the Inventor, By the Inventor

Tsurugashima, Japan

Masahiro Katsumura

This inventor holds 16 USPTO granted patents, primarily in Optical Recording Technology. Top assignees: Pioneer Corporation, Pioneer Electronic Corporation, Nuflare Technology, Inc.. Active years: 1993-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Katsumura. Retrieved from https://idiyas.com/inventor/masahiro-katsumura

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

Calculating rank
USPTO Granted Patents = 16

% Patents Active = 37.5

Average Co-Inventor Count = 1.9

ph-index = 4

Forward Citations = 53(Granted Patents)


Location History:

  • Saitama-ken, JP (2001)
  • Saitama, JP (1993 - 2007)
  • Tsurugashima, JP (1995 - 2012)
  • Kawagoe, JP (2012)

Company Filing History:

goldMedal10 out of 2,680 
 
Pioneer Corporation
 patents
silverMedal3 out of 2,861 
 
Pioneer Electronic Corporation
 patents
bronzeMedal1 out of 749 
 
Nuflare Technology, Inc.
 patents
4. 2 out of 834,601 
Other
 patents

Years Active: 1993-2012

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Areas of Expertise:
Optical Disc
Master Disk
Stamper
Electron Beam
Recording Medium
Information Recording
Manufacturing Method
Phase Change
16 patents (USPTO):Explore Patents
1. 8335146 - Master disk exposing apparatus and the adjusting method therefor (2012-12-18),
2. 8192194 - Mold and method for manufacturing the same (2012-06-05),
3. 7632628 - Stamper and method for production thereof (2009-12-15),
4. 7554896 - Electron beam recording apparatus (2009-06-30),
5. 7276692 - Beam adjusting sample, beam adjusting method and beam adjusting device (2007-10-02),
6. 7225192 - Hybrid recording medium and information recording apparatus (2007-05-29),
7. 7065034 - Optical disc and apparatus for manufacturing a master disc therefor (2006-06-20),
8. 6882615 - Optical disc and apparatus for manufacturing a master disc therefor (2005-04-19),
9. 6849390 - Stamper-forming electrode material, stamper-forming thin film, and method of manufacturing optical disk (2005-02-01),
10. 6695987 - Production method for optical disc (2004-02-24),
11. 6657934 - Information recording apparatus and method therefor (2003-12-02),
12. 6344275 - Electrode material for forming stamper and thin film for forming stamper (2002-02-05),
13. 6307826 - Information recording medium and method for recording information thereon (2001-10-23),
14. 5446722 - Information recording apparatus having magnetic shield means (1995-08-29),
15. 5195080 - Optical recording medium initializing method and apparatus (1993-03-16),

Title: Masahiro Katsumura: Innovator in Master Disk Exposing Technology

Introduction

Masahiro Katsumura is a prominent inventor based in Tsurugashima, Japan. He holds a total of 16 patents, showcasing his significant contributions to the field of technology and engineering. His work primarily focuses on advanced apparatuses and methods that enhance manufacturing processes.

Latest Patents

Katsumura's latest patents include a master disk exposing apparatus and a method for manufacturing molds. The master disk exposing apparatus features a turntable for rotating a master disk, moving means for horizontal movement, and beam irradiating means for directing an electron beam onto the turntable. This innovative design allows for precise control of the beam spot's origin, ensuring it aligns with the turntable's rotational center. Additionally, his mold patent introduces gripping portions on the outer circumferential region, facilitating easier transfer by a transfer apparatus.

Career Highlights

Throughout his career, Masahiro Katsumura has worked with notable companies such as Pioneer Corporation and Pioneer Electronic Corporation. His experience in these organizations has contributed to his expertise in developing cutting-edge technologies.

Collaborations

Katsumura has collaborated with talented individuals in the industry, including Tetsuya Iida and Takashi Ueno. These partnerships have likely enriched his work and led to innovative solutions in his field.

Conclusion

Masahiro Katsumura's contributions to technology through his patents and collaborations highlight his role as a significant inventor. His innovative approaches to manufacturing processes continue to influence the industry.

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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