Seiji Hachisuka

This inventor holds 17 USPTO granted patents. Top assignees: Fujitsu Corporation, Sharp Kabushiki Kaisha Corporation. Active years: 2006-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Hachisuka. Retrieved from https://idiyas.com/inventor/seiji-hachisuka

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

USPTO Granted Patents = 17

% Patents Active = 5.9

Average Co-Inventor Count = 2.4

ph-index = 4

Forward Citations = 50(Granted Patents)

Company Filing History:

Sharp Kabushiki Kaisha Corporation

patents

Years Active: 2006-2010

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17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7654698 - Light source device and display device (2010-02-02),

2. 7598748 - Inverter system (2009-10-06),

3. 7549768 - Display device, including discharge tube temperature control member (2009-06-23),

4. 7541723 - Backlight having a polarization separating element (2009-06-02),

5. 7532316 - Display panel inspection apparatus and method (2009-05-12),

6. 7513650 - Light source device and display device (2009-04-07),

7. 7513649 - Light source device and display device (2009-04-07),

8. 7492162 - Inverter system (2009-02-17),

9. 7486082 - Anomaly detection in inverter system (2009-02-03),

10. 7470040 - Light source device and display device (2008-12-30),

11. 7470039 - Light source device and display device (2008-12-30),

12. 7396144 - Light source device and display device (2008-07-08),

13. 7309146 - Backlight having discharge tube, reflector and heat conduction member contacting discharge tube (2007-12-18),

14. 7290901 - Light source device, and display device, display module, information handling apparatus and portable information handling apparatus comprising same (2007-11-06),

15. 7290899 - Light source device and display device (2007-11-06),

Title: Seiji Hachisuka: Innovator in Light Source and Inverter Technology

Introduction

Seiji Hachisuka is a prominent inventor based in Kawasaki, Japan. He holds a total of 17 patents, showcasing his significant contributions to the fields of light source devices and inverter systems. His innovative work has had a lasting impact on technology and engineering.

Latest Patents

Hachisuka's latest patents include a light source device and an inverter system. The light source device features a discharge tube, a reflector for reflecting light, and support members designed to maintain the temperature of the discharge tube near its electrodes. This design aims to prolong the operational life of the discharge tube. The inverter system converts direct current (DC) input into alternating current (AC) output, supplying it to loads such as fluorescent tubes. It detects changes in circuit current due to anomalies without direct contact with the current route, utilizing magnetic flux changes to ensure safety and efficiency.

Career Highlights

Throughout his career, Hachisuka has worked with notable companies, including Fujitsu Corporation and Sharp Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.

Collaborations

Hachisuka has collaborated with esteemed colleagues such as Akio Sotokawa and Masaru Tanaka. Their joint efforts have further propelled the development of cutting-edge technologies in their respective fields.

Conclusion

Seiji Hachisuka's contributions to light source and inverter technology exemplify his innovative spirit and dedication to engineering. His patents reflect a commitment to enhancing the functionality and safety of electronic devices.

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]