This inventor holds 22 USPTO granted patents and 7 published patent applications and 9 EPO patents, primarily in Hybrid Vehicle Technology. Top assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation. Active years: 2009-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
22 out of 39,010 
2 out of 20,443 
Years Active: 2009-2026
Areas of Expertise:
Title: Innovations by Takahiko Hirasawa in Vehicle Technology
Introduction
Takahiko Hirasawa, located in Toyota, Japan, is a prolific inventor with 21 patents to his name. His work primarily focuses on enhancing vehicle technology, particularly in the context of noise reduction and traffic signal management. Hirasawa's innovative contributions have made significant impacts in the automotive industry, demonstrating a blend of practicality and creative engineering.
Latest Patents
Hirasawa's latest patents showcase his commitment to improving the driving experience and traffic efficiency. One notable invention is a vehicle controller designed to manage the power train of a vehicle. This controller effectively switches between two modes—first control and second control—where the second control significantly reduces operating noise compared to the first. This innovative feature also incorporates mood determination capabilities, assessing the occupant's tolerance of noise in the passenger compartment to select the appropriate control mode.
Another remarkable invention is a traffic signal control system. This system intelligently adjusts the green time of traffic signals based on vehicle class information for vehicles approaching intersections. By differentiating between environmentally friendly and environmentally unfriendly vehicles, Hirasawa’s system optimizes traffic flow and promotes eco-friendly transportation.
Career Highlights
Throughout his career, Takahiko Hirasawa has held positions in esteemed companies such as Toyota Motor Corporation and Denso Corporation. His tenure in these organizations has allowed him to work on cutting-edge technologies that leverage his expertise in vehicle control systems and environmental considerations.
Collaborations
During his innovative journey, Hirasawa has collaborated with notable colleagues, including Keiji Kaita and Takeshi Hoshiba. Their combined efforts have undoubtedly fostered advancements in automotive technologies, pushing the boundaries of engineering and design.
Conclusion
Takahiko Hirasawa represents a significant figure in the realm of vehicle innovation. With a strong portfolio of patents, his work continues to enhance not only the functionality and comfort of vehicles but also the efficiency of traffic systems. His contributions reflect a dedication to improving transportation technology while considering environmental impacts, exemplifying the spirit of innovation in the automotive industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile