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For the Inventor, By the Inventor

Itami, Japan

Takuo Kashiwa

This inventor holds 7 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1993-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takuo Kashiwa. Retrieved from https://idiyas.com/inventor/takuo-kashiwa

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 5

Forward Citations = 133(Granted Patents)


Location History:

  • Itami, JP (1993 - 1996)
  • Tokyo, JP (1998 - 2001)

Company Filing History:

goldMedal7 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1993-2001

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7 patents (USPTO):Explore Patents
1. 6300840 - Microwave/millimeter-wave integrated circuit (2001-10-09),
2. 5905409 - Microwave and millimeter wave circuit including amplifier and band (1999-05-18),
3. 5705847 - Semiconductor device (1998-01-06),
4. 5563551 - Impedance matching circuit (1996-10-08),
5. 5485130 - Microwave switch circuit and an antenna apparatus (1996-01-16),
6. 5302554 - Method for producing semiconductor device (1994-04-12),
7. 5202649 - Microwave integrated circuit device having impedance matching (1993-04-13),

Title: The Innovative Mind of Takuo Kashiwa

Introduction: Takuo Kashiwa is a distinguished inventor based in Itami, Japan, known for his significant contributions to the field of microwave and millimeter-wave technology. With a portfolio of 7 patents, Kashiwa has made remarkable advancements, particularly in circuit design and stability.

Latest Patents: Among Kashiwa's latest patents are groundbreaking developments that showcase his expertise. The first invention, a microwave/millimeter-wave integrated circuit, addresses the challenge of stable oscillation by minimizing time-based variations in load impedance. This innovation cleverly connects an oscillator to a Lange coupler's input terminal while incorporating a terminating resistor that stabilizes load impedance, thus reducing frequency variation in oscillation due to load changes.

His second notable patent presents a comprehensive circuit that includes an amplifier paired with intricate transmission lines and various band elimination filters. This configuration optimizes performance by strategically applying stopping frequencies that enhance the circuit’s amplification capabilities, effectively allowing for greater stability and efficiency in microwave and millimeter-wave applications.

Career Highlights: Takuo Kashiwa has spent his career at Mitsubishi Denki Kabushiki Kaisha, where he has honed his skills as an engineer and inventor. His dedication to technological advancements in microwave technology has positioned him as a key figure in his field, contributing solutions that address complex challenges in circuit design.

Collaborations: Collaboration has played an essential role in Kashiwa's achievements. He has worked alongside other prominent professionals, including Makio Komaru and Takahide Ishikawa. Their collective efforts in research and development have further propelled innovations that are shaping the future of microwave engineering.

Conclusion: Takuo Kashiwa stands out as a pivotal inventor whose work resonates within the realms of microwave and millimeter-wave technologies. With a focus on stability and efficiency through innovative circuit designs, he continues to leave a lasting impact on the industry, inspiring future generations of inventors and engineers.

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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