This inventor holds 31 USPTO granted patents and 6 published patent applications and 4 EPO patents, primarily in Electrolytic Capacitors. Top assignees: Jsr Corporation, Oki Electric Industry Co., Ltd., Nippon Chemi-Con Corporation. Active years: 1982-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Mie, JP (1999)
- Yokkaichi, JP (2000)
- Ome, JP (2009)
- Odawara, JP (2011)
- Tokyo, JP (1982 - 2021)
Company Filing History:






Years Active: 1982-2026
Areas of Expertise:
Title: The Innovations of Makoto Shimizu: A Leading Inventor in Capacitor Technology and Track Measurement
Introduction: Makoto Shimizu is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the fields of capacitor technology and track measurement systems. With a remarkable portfolio of 28 patents, Shimizu has made strides in enhancing the safety and efficiency of electrical devices and transportation systems.
Latest Patents: Among his latest innovations, Shimizu developed an advanced capacitor device designed to enhance safety in circuits. This device includes a series of capacitors that are interconnected, with one or two capacitors having a deliberately lower dielectric breakdown voltage. This design ensures that these capacitors undergo dielectric breakdown during overvoltage conditions before others, effectively creating a short circuit to protect the device and any connected systems from damage.
Additionally, Shimizu has made notable advancements with his method of measuring the condition of tracks using vehicles designed for commercial operation. This method enables precise measurement of track twists while a vehicle travels over it. With a specialized bogie that houses four wheels and corresponding primary springs, the vehicle is capable of measuring wheel loads, determining displacement, and ultimately calculating the track twist. This innovation promises improvements in the safety and reliability of rail transportation.
Career Highlights: Throughout his career, Makoto Shimizu has held significant positions in reputable companies such as JSR Corporation and Oki Electric Industry Co., Ltd. His work in these organizations has played a pivotal role in the development and application of his patented technologies.
Collaborations: Shimizu's innovative journey has been supported by collaborations with skilled professionals like Tomoki Nagai and Takuma Ebata. Their collective expertise has contributed to the successful realization of Shimizu's inventive concepts.
Conclusion: Makoto Shimizu stands out as a beacon of innovation in both capacitor technology and track measurement methodologies. His extensive patent portfolio reflects his dedication to enhancing safety and efficiency, marking him as a significant figure in the landscape of modern technological advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile