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For the Inventor, By the Inventor

Hikone, Japan

Toshiharu Hirota

This inventor holds 13 USPTO granted patents. Top assignee: Murata Manufacturing Co., Ltd.. Active years: 1984-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiharu Hirota. Retrieved from https://idiyas.com/inventor/toshiharu-hirota

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 = 92.3

Average Co-Inventor Count = 3.1

ph-index = 6

Forward Citations = 127(Granted Patents)


Location History:

  • Nagaokakyo, JP (1993)
  • Shiga, JP (1999 - 2001)
  • Hikone, JP (1984 - 2006)

Company Filing History:

goldMedal13 out of 13,796 
 
Murata Manufacturing Co., Ltd.
 patents

Years Active: 1984-2006

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13 patents (USPTO):Explore Patents
1. 7109841 - Surface-mount positive temperature coefficient thermistor and manufacturing method therefor (2006-09-19),
2. 7005827 - Starting circuit for single-phase induction motor (2006-02-28),
3. 6522238 - Semiconductor ceramic and positive-temperature-coefficient thermistor (2003-02-18),
4. 6455454 - Semiconductor ceramic, semiconductor ceramic element and circuit protection element (2002-09-24),
5. 6432558 - Semiconductor ceramic and semiconductor ceramic device (2002-08-13),
6. 6362521 - Semiconductor ceramic and device using the same (2002-03-26),
7. 6346496 - Composite material for positive temperature coefficient thermistor, ceramic for positive temperature coefficient thermistor and method for manufacturing ceramics for positive temperature coefficient thermistor (2002-02-12),
8. 6311390 - Method of producing thermistor chips (2001-11-06),
9. 6187707 - Barium titanate-based semiconductive ceramic composition (2001-02-13),
10. 6040755 - Chip thermistors and methods of making same (2000-03-21),
11. 5939972 - Positive temperature characteristic thermistor and thermistor element (1999-08-17),
12. 5245309 - Thermistor element (1993-09-14),
13. 4482934 - Temperature compensating titanate ceramic capacitor with nickel or (1984-11-13),

Title: Innovations of Toshiharu Hirota

Introduction

Toshiharu Hirota is a prominent inventor based in Hikone, Japan. He has made significant contributions to the field of thermistors and motor control technologies. With a total of 13 patents to his name, Hirota's work has had a considerable impact on various applications in electronics.

Latest Patents

Hirota's latest patents include a surface-mount positive temperature coefficient thermistor and a manufacturing method for it. This innovative thermistor features a disk-shaped element with electrodes on opposing surfaces, housed within an insulating case. The design allows for efficient electrical contact through metal terminals that sandwich the thermistor element. Another notable patent is for a starting circuit for a single-phase induction motor. This circuit incorporates a motor starting positive characteristic thermistor and a triac in a series connection, ensuring optimal performance and control.

Career Highlights

Hirota has dedicated his career to advancing thermistor technology, particularly in applications that require precise temperature control. His work at Murata Manufacturing Co., Ltd. has positioned him as a key player in the development of electronic components that enhance device efficiency and reliability.

Collaborations

Hirota has collaborated with notable coworkers such as Yasuhiro Nabika and Tetsukazu Okamoto. Their combined expertise has contributed to the successful development of innovative technologies in their field.

Conclusion

Toshiharu Hirota's contributions to thermistor technology and motor control circuits exemplify the spirit of innovation. His patents reflect a commitment to enhancing electronic performance and reliability.

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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