Tokyo, Japan

Hiromichi Takatsuka

This inventor holds 3 USPTO granted patents. Top assignees: Nissan Motor Company Limited, 501 Nissan Motor Co., Ltd.. Active years: 1991-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromichi Takatsuka. Retrieved from https://idiyas.com/inventor/hiromichi-takatsuka

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 2

Forward Citations = 8(Granted Patents)


Company Filing History:


Years Active: 1991-1992

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3 patents (USPTO):Explore Patents

Title: Hiromichi Takatsuka: Innovator in Automotive Heating Technology

Introduction

Hiromichi Takatsuka is a notable inventor based in Tokyo, Japan. He has made significant contributions to automotive technology, particularly in the field of vehicle window heating systems. With a total of 3 patents to his name, Takatsuka's innovations have enhanced the functionality and efficiency of automotive heating solutions.

Latest Patents

One of Takatsuka's latest patents is a vehicle window heating apparatus designed for use with automotive vehicles. This innovative system includes a vehicle battery, an internal combustion engine, a transmission, and a generator that produces an output voltage corresponding to engine speed. The apparatus features a voltage regulator that controls current to the field winding, ensuring a constant generator output voltage. A heating element is connected to the generator output terminals to heat the vehicle window when needed. The system is designed to respond to heating demand signals while preventing excessive voltage that could damage the heating element.

Another significant patent is a window heater controlling apparatus that utilizes a microcomputer to detect heater-ON conditions. This system gradually increases the heating voltage of the alternator to the rated heating voltage at the beginning of the heater control operation. The control is achieved through duty ratio control of a switching transistor, ensuring a smooth and efficient heating process.

Career Highlights

Throughout his career, Hiromichi Takatsuka has worked with prominent companies in the automotive industry, including Nissan Motor Company Limited and 501 Nissan Motor Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in automotive technology.

Collaborations

Takatsuka has collaborated with notable colleagues such as Tetsuzo Kosaka and Kenichi Sasaki. Their combined expertise has contributed to the advancement of automotive heating technologies.

Conclusion

Hiromichi Takatsuka's contributions to automotive heating technology through his patents demonstrate his commitment to innovation in the industry. His work continues to influence the design and functionality of vehicle heating systems, making a significant impact on automotive engineering.

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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