Toyoji Gushima

This inventor holds 61 USPTO granted patents and 3 published patent applications and 3 EPO patents, primarily in Optical Information Storage (CPC class G11B). Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation, Panasonic Intellectual Property Management Co., Ltd.. Active years: 1996-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toyoji Gushima. Retrieved from https://idiyas.com/inventor/toyoji-gushima

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

USPTO Granted Patents = 61 (Patent Applications = 3)

% Patents Active = 67.2

EPO Patents = 3 (Patent Applications = 7)

Average Co-Inventor Count = 3.5

ph-index = 13

Forward Citations = 515(Granted Patents)

Forward Citations (Not Self Cited) = 460(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Habikino, JP (1996 - 2012)
Osaka, JP (2004 - 2018)

Company Filing History:

40 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

18 out of 16,454

Panasonic Corporation

patents

2 out of 13,338

Panasonic Intellectual Property Management Co., Ltd.

patents

4. 1 out of 115

Matsushita Electrical Industrial Co., Ltd.

patents

Years Active: 1996-2018

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Areas of Expertise:

Optical Disk

Data Recording

Wobble Demodulation

Information Reproduction

Recording Medium

Optical Storage

Playback Control

Crystal Nucleus Formation

Heat Storage Device

Position Detection

Recording Apparatus

Access Authentication

61 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10119768 - Heat storage device and heat storage module including the same (2018-11-06),

2. 10094622 - Method for forming crystal nucleus in latent heat storage material and heat storage device (2018-10-09),

3. 8363529 - Optical disc recording device and recording signal generating device (2013-01-29),

4. 8270268 - Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus (2012-09-18),

5. 8218408 - Information recording method and information reproducing method (2012-07-10),

6. 8130614 - Optical storage medium, information recording apparatus, and information reproducing apparatus (2012-03-06),

7. 8130611 - Method and an apparatus for recording information, and an information recording medium (2012-03-06),

8. 8125675 - Labeling method, recording method, labeling apparatus, recording apparatus and recording medium (2012-02-28),

9. 8050172 - Optical disc on which information is written on a block-by-block basis (2011-11-01),

10. 8027237 - Optical storage medium, information recording apparatus, and information reproducing apparatus (2011-09-27),

11. 7986597 - PLL control device and reproduction apparatus with linking portion control (2011-07-26),

12. 7940614 - Method and an apparatus for recording information, and an information recording medium (2011-05-10),

13. 7869338 - Position detection device, position detection method, position detection control device, position detection control method, position detection control program, access authentication device, access authentication method, access authentication control device, access authentication control method, access authentication control program, information storage device, and optical disk (2011-01-11),

14. 7826314 - Optical disk having wobble patterns representing control information (2010-11-02),

15. 7768893 - Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus (2010-08-03),

Title: Unveiling the Innovations of Inventor Toyoji Gushima

Introduction:

Toyoji Gushima, a distinguished inventor hailing from Osaka, Japan, has left an indelible mark on the world of technology and innovation. With a total of 61 patents to his name, his contributions have significantly advanced the field of heat storage technology.

Latest Patents:

Gushima's latest patents showcase his expertise in the realm of heat storage devices. His inventions include a heat storage device and a heat storage module designed to efficiently absorb and release latent heat through a phase transition process. The incorporation of a high thermal conductivity heat conduction member sets his creations apart, ensuring optimal heat transfer within the system.

Method for forming crystal nucleus in latent heat storage material and heat storage device:

One of Gushima's recent inventions focuses on a method for forming crystal nucleus in a latent heat storage material. By leveraging a solvent containing water, this innovative technique facilitates the controlled dissipation of heat in the supercooled state of the material. This breakthrough paves the way for enhanced heat storage capabilities and energy efficiency.

Career Highlights:

Throughout his career, Gushima has made significant contributions to renowned companies such as Matsushita Electric Industrial Co., Ltd., and Panasonic Corporation. His innovative spirit and dedication to advancing heat storage technology have earned him recognition as a pioneering figure in the industry.

Collaborations:

Gushima's collaborative efforts with esteemed colleagues such as Takashi Ishida and Shigeru Furumiya have further enriched the landscape of heat storage innovation. Together, they have propelled groundbreaking research and development initiatives that continue to shape the future of energy-efficient technologies.

Conclusion:

Inventor Toyoji Gushima's relentless pursuit of innovation and his prolific contributions to heat storage technology underscore his status as a visionary inventor. His impactful patents and collaborative endeavors serve as a testament to his enduring legacy in the realm of inventions and technological advancements.

Profile summary based on public USPTO records.