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For the Inventor, By the Inventor

Katsuta, Japan

Susumu Murakami

This inventor holds 16 USPTO granted patents, primarily in Semiconductor Technology. Top assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd., Other. Active years: 1979-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Susumu Murakami. Retrieved from https://idiyas.com/inventor/susumu-murakami-iaav24ta

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

Calculating rank
USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 4.7

ph-index = 9

Forward Citations = 317(Granted Patents)


Location History:

  • Hitachi, JP (1979 - 1985)
  • Ibaraki, JP (1995)
  • Katsuta-shi, JP (1996)
  • Katsuta, JP (1987 - 1997)
  • Hitachinaka, JP (2001)

Company Filing History:

goldMedal15 out of 42,752 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 152 
 
Hitachi Automotive Engineering Co., Ltd.
 patents
bronzeMedal1 out of 834,659 
Other
 patents
where one patent can have more than one assignee

Years Active: 1979-2001

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Areas of Expertise:
Semiconductor Composite Sensor
Overvoltage Protection
Thyristor
Micro Transducer
Rectifying Diode
High Breakdown Voltage
Pulse Signal Transmission
Field Controlled Thyristor
Electrostatic Sensor
Constant-Voltage Diode
Power Converter
16 patents (USPTO):Explore Patents
1. 6211772 - Semiconductor composite sensor (2001-04-03),
2. 5627387 - Overvoltage self-protection semiconductor device, method of fabrication (1997-05-06),
3. 5552625 - Semiconductor device having a semi-insulating layer (1996-09-03),
4. 5537882 - Semiconductor sensor for detecting physical amount without thermal (1996-07-23),
5. 5459338 - Gate turn-off thyristor and power convertor using the same (1995-10-17),
6. 5430311 - Constant-voltage diode for over-voltage protection (1995-07-04),
7. 5367429 - Electrostatic type micro transducer and control system using the same (1994-11-22),
8. 5324967 - Turn off type semiconductor device, method of producing the same and the (1994-06-28),
9. 5256889 - Semiconductor rectifying diode with PN geometry (1993-10-26),
10. 5097160 - Method of transmitting pulse signal and apparatus therefor (1992-03-17),
11. 5081509 - Semiconductor rectifying diode with pn geometry (1992-01-14),
12. 4691223 - Semiconductor device having high breakdown voltage (1987-09-01),
13. 4514747 - Field controlled thyristor with double-diffused source region (1985-04-30),
14. 4354121 - Field controlled thyristor control circuit with additional FCT in (1982-10-12),
15. 4329772 - Method for manufacturing a semiconductor device utilizing selective (1982-05-18),

Title: Susumu Murakami: Innovator in Semiconductor Technology

Introduction

Susumu Murakami is a prominent inventor based in Katsuta, Japan, known for his significant contributions to semiconductor technology. With a total of 16 patents to his name, Murakami has made remarkable advancements in the field, particularly in the development of innovative semiconductor devices.

Latest Patents

Among his latest patents is the "Semiconductor Composite Sensor," which utilizes a plurality of semiconductor piezoresistive gauge elements connected in series. This sensor design ensures that the piezoresistive elements are separated, allowing for equal potential values between the high potential terminal of one resistive element and the substrate of another. Additionally, he has developed an "Overvoltage Self-Protection Semiconductor Device," which features a main thyristor portion for supplying a main current, along with auxiliary and pilot thyristor portions. This device includes a breakover portion with semiconductor layers of varying impurity concentrations, enhancing its functionality and reliability.

Career Highlights

Throughout his career, Murakami has worked with notable companies such as Hitachi, Ltd. and Hitachi Automotive Engineering Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the semiconductor industry.

Collaborations

Murakami has collaborated with esteemed colleagues, including Yukimasa Satou and Satoshi Shimada. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Susumu Murakami's work in semiconductor technology exemplifies the spirit of innovation and dedication to advancing the field. His patents and collaborations reflect his commitment to creating cutting-edge solutions that address modern technological challenges.

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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