Toru Yoshihara

This inventor holds 33 USPTO granted patents and 1 published patent application, plus 5 CIPO patents and 7 EPO patents, primarily in Optical Technology. Top assignees: Kao Corporation, Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation. Active years: 1990-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toru Yoshihara. Retrieved from https://idiyas.com/inventor/toru-yoshihara

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

USPTO Granted Patents = 33 (Patent Applications = 1)

% Patents Active = 81.8

CIPO Patents = 5

EPO Patents = 7 (Patent Applications = 6)

Average Co-Inventor Count = 3.9

ph-index = 11

Forward Citations = 329(Granted Patents)

Location History:

Tama, JP (1990)
Funabashi, JP (1990)
Nagaokakyo, JP (1993 - 1995)
Ichikawa, JP (1995)
Hitachinaka, JP (2015)
Tokyo, JP (1991 - 2016)

Company Filing History:

Mitsubishi Denki Kabushiki Kaisha

patents

6 out of 16,602

Mitsubishi Electric Corporation

Asai Germanium Research Institute

patents

6. 1 out of 81

Nippon Thermostat Co., Ltd.

patents

Years Active: 1990-2016

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Areas of Expertise:

Semiconductor Laser Array

Power Conversion

Optical Disc

Voltage Source Converter

Light Source Device

Hair Treatment Composition

Optical Recording Apparatus

Thermostat

Dye Composition

Keratinous Fiber

Optical Head Device

Organogermanium Compounds

33 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9466946 - Semiconductor laser array (2016-10-11),

2. 9344020 - Power conversion apparatus and electrical-mechanical energy conversion system (2016-05-17),

3. 9219426 - Switching element, power converter, direct current transmission system, current control device, method of controlling power converter, and method of controlling current in voltage source converter (2015-12-22),

4. 9166492 - Multilevel voltage source converter and method for balancing capacitors (2015-10-20),

5. 9083136 - Semiconductor laser light source (2015-07-14),

6. 8960974 - Light source device (2015-02-24),

7. 8733995 - Light source device with reduced optical part clouding (2014-05-27),

8. 8724668 - Light source device (2014-05-13),

9. 7447130 - Optical disc, optical disc device, optical disc recording device, and optical disc driving method (2008-11-04),

10. 7172135 - Thermostat for two-system cooling device (2007-02-06),

11. 7047970 - Mask (2006-05-23),

12. 6629964 - Steam-generating pad (2003-10-07),

13. 6510119 - Optical head device (2003-01-21),

14. 6217855 - Hair treatment composition (2001-04-17),

15. 5750099 - Two-pack type keratinous fiber treating composition (1998-05-12),

Title: **Toru Yoshihara: A Pioneer in Semiconductor Technology**

Introduction

Toru Yoshihara, based in Tokyo, Japan, is a renowned inventor holding an impressive total of 33 patents. His contributions to the fields of semiconductor technology and power conversion have significantly influenced modern engineering and technology.

Latest Patents

Among Yoshihara's latest innovations, the "Semiconductor Laser Array" stands out. This invention features multiple laser elements disposed in parallel, each equipped with unique front-end-surface and rear-end-surface reflection films. The design allows for efficient light emission and is driven by a single power supply. Another notable patent is the "Power Conversion Apparatus and Electrical-Mechanical Energy Conversion System." This invention includes multiple unit converters capable of outputting arbitrary voltages and connects to a rotary electric machine, showcasing Yoshihara's expertise in energy efficiency and conversion technologies.

Career Highlights

Yoshihara's career includes significant roles at prominent companies such as Kao Corporation and Mitsubishi Electric Corporation. His work in these organizations has led to innovative solutions that bridge the gap between theoretical research and practical applications.

Collaborations

Throughout his career, Yoshihara has collaborated with esteemed colleagues, including Jiro Kawase and Hidetoshi Tagami. These partnerships have contributed to the successful development and patenting of various technologies, amplifying the impact of their work in the industry.

Conclusion

Toru Yoshihara's extensive patent portfolio and innovative contributions make him a key figure in semiconductor and energy conversion technologies. His dedication to research and development continues to inspire new generations of inventors and engineers, fostering advancements that propel various industries forward.

Profile summary based on public USPTO records.