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For the Inventor, By the Inventor

Saitama, Japan

Shigenobu Maruoka

This inventor holds 13 USPTO granted patents. Top assignee: Lintec Corporation. Active years: 1993-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigenobu Maruoka. Retrieved from https://idiyas.com/inventor/shigenobu-maruoka

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

USPTO Granted Patents = 13

% Patents Active = 84.6

Average Co-Inventor Count = 3.1

ph-index = 6

Forward Citations = 90(Granted Patents)


Location History:

  • Kawasaki, JP (1993)
  • Urawa, JP (2001 - 2002)
  • Saitama-Ken, JP (2004)
  • Saitama, JP (2003 - 2005)
  • Tatuno, JP (2004 - 2005)
  • Tokyo, JP (2005)

Company Filing History:

goldMedal13 out of 665 
 
Lintec Corporation
 patents

Years Active: 1993-2005

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13 patents (USPTO):Explore Patents
1. 6933040 - Hard coat film (2005-08-23),
2. 6887557 - Anti-static hard coat film and method of manufacturing the same (2005-05-03),
3. 6859322 - Film for optical applications (2005-02-22),
4. 6841272 - Film for optical applications (2005-01-11),
5. 6827997 - Pressure-sensitive adhesive sheet and covered structure (2004-12-07),
6. 6773835 - Film for optical applications (2004-08-10),
7. 6613426 - Very fine anti-glare hard coat film (2003-09-02),
8. 6404543 - Infrared shielding film (2002-06-11),
9. 6331071 - Stirring device (2001-12-18),
10. 6244741 - Stirring device (2001-06-12),
11. 5266447 - Photochromic composition (1993-11-30),
12. 5252395 - Blister resistant pressure sensitive adhesive sheet (1993-10-12),
13. 5229195 - Composite body having a blister-free pressure-sensitive adhesive sheet (1993-07-20),

Title: Shigenobu Maruoka: Innovator in Hard Coat Film Technology

Introduction

Shigenobu Maruoka is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced hard coat films. With a total of 13 patents to his name, Maruoka's innovations have had a substantial impact on various industries.

Latest Patents

One of Maruoka's latest patents is for a hard coat film that comprises a substrate and a hard coat layer. This layer is formed by applying a curable composition containing a photocurable substance and an oligomer type photopolymerization initiator, followed by curing through light irradiation. This hard coat film exhibits excellent adhesion properties between the hard coat layer and the substrate after heat treatment, while also restraining gases generated during the process. Another notable patent is for an anti-static hard coat film and its manufacturing method. This film is easy to produce, offers high total light transmission, and provides favorable viewability for displayed images. It achieves a superior balance between anti-static effects and scratch resistance, featuring a hard coat layer made of an ionizing radiation-curable resin and an anti-static layer.

Career Highlights

Maruoka is currently associated with Lintec Corporation, where he continues to innovate in the field of hard coat films. His work has been instrumental in advancing the technology used in various applications, enhancing product performance and durability.

Collaborations

Throughout his career, Maruoka has collaborated with notable colleagues, including Satoru Shoshi and Yutaka Onozawa. These collaborations have further enriched his research and development efforts, leading to groundbreaking advancements in hard coat film technology.

Conclusion

Shigenobu Maruoka's contributions to the field of hard coat films exemplify his dedication to innovation and excellence. His patents reflect a commitment to improving material properties and functionality, making a lasting impact on 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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