Shigeru Horii is a prominent inventor based in Takatsuki, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of discharge lamp technologies. With a total of 16 patents to his name, Horii's work has had a lasting impact on the industry.

Latest Patents

Horii's latest patents include a method and apparatus for operating a discharge lamp designed to reduce operational issues. This innovative apparatus features a glass envelope that defines a discharge space, housing a pair of electrodes that are hermetically sealed within the envelope. The apparatus incorporates a generation element that produces a waveform signal with an acoustic resonant frequency, which excites a mode that straightens the discharge arc between the electrodes. Additionally, a modulation element alters the waveform signal's polarity at a frequency lower than the acoustic resonant frequency. This design ensures that the depth of modulation at the beginning of operation is equal to or less than that under rated conditions.

Another notable patent is for a fluorescent lamp operating apparatus. This device operates a fluorescent lamp, which consists of a glass tube coated with phosphor and containing mercury. The apparatus generates an electric field directed from the inner surface of the glass tube toward its center. It includes a ballast circuit for starting the lamp, a potential application member that partially surrounds the discharge plasma, and a potential application circuit that applies a higher potential to the member than that of the discharge plasma.

Career Highlights

Shigeru Horii has spent a significant portion of his career at Matsushita Electric Industrial Co., Ltd., where he has been instrumental in advancing lamp technology. His innovative designs and patents have contributed to the efficiency and effectiveness of lighting solutions in various applications.

Collaborations

Throughout his career, Horii has collaborated with notable colleagues, including Kouji Miyazaki and Satoshi Kominami. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Shigeru Horii's contributions to discharge lamp technology exemplify his dedication to innovation and engineering excellence. His patents continue to influence the industry, showcasing the importance of research and development in creating efficient lighting solutions.

Profile summary based on public USPTO records.

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