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For the Inventor, By the Inventor

Sakai, Japan

Koichiro Fujita

This inventor holds 10 USPTO granted patents. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 2001-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichiro Fujita. Retrieved from https://idiyas.com/inventor/koichiro-fujita

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

USPTO Granted Patents = 10

% Patents Active = 80.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 15(Granted Patents)


Location History:

  • Nara, JP (2001 - 2002)
  • Tenri, JP (2004)
  • Osaka, JP (2015)
  • Sakai, JP (2017 - 2021)

Company Filing History:

goldMedal10 out of 25,954 
 
Sharp Kabushiki Kaisha Corporation
 patents

Years Active: 2001-2021

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10 patents (USPTO):Explore Patents
1. 10892748 - Power module (2021-01-12),
2. 10848144 - Switching control circuit (2020-11-24),
3. 10756011 - Power semiconductor module, electronic device, and method for controlling power semiconductor module (2020-08-25),
4. 10381472 - Nitride-semiconductor field-effect transistor (2019-08-13),
5. 9824887 - Nitride semiconductor device (2017-11-21),
6. 9171947 - Nitride semiconductor device (2015-10-27),
7. 9082834 - Nitride semiconductor device (2015-07-14),
8. 6825508 - Heterojunction bipolar transistor and production process therefor (2004-11-30),
9. 6455390 - Method of manufacturing hetero-junction bipolar transistor (2002-09-24),
10. 6258685 - Method of manufacturing hetero-junction bipolar transistor (2001-07-10),

Title: Koichiro Fujita: Innovator in Power Module Technology

Introduction

Koichiro Fujita is a prominent inventor based in Sakai, Japan. He has made significant contributions to the field of power electronics, holding a total of 10 patents. His work focuses on developing advanced power modules and switching control circuits that enhance efficiency and reduce electromagnetic interference.

Latest Patents

Fujita's latest patents include a power module that features a power circuit with one or more power semiconductors and a control circuit that supplies gate signals to these semiconductors. This innovative design incorporates gate drivers that generate signals based on control inputs while ensuring insulation between the input and output sides. Another notable patent is a switching control circuit designed to manage the on/off states of switching elements. This circuit efficiently disperses EMI noise caused by high-speed switching, utilizing a gate driver, a variable capacitance element, and a capacitance changing circuit that randomly alters the capacitance.

Career Highlights

Koichiro Fujita is currently employed at Sharp Kabushiki Kaisha Corporation, where he continues to push the boundaries of power electronics. His expertise and innovative spirit have made him a valuable asset to the company and the industry as a whole.

Collaborations

Fujita has collaborated with notable colleagues, including Kenichi Tanaka and Naoki Takahashi, to further advance their projects and innovations in power technology.

Conclusion

Koichiro Fujita's contributions to power module technology and his innovative patents reflect his dedication to enhancing efficiency in electronic systems. His work continues to influence the field and inspire future advancements.

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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