This inventor holds 8 USPTO granted patents and 5 published patent applications and 1 EPO patent. Top assignees: Mitsubishi Electric Corporation, Mitsubishi Denki Kabushiki Kaisha, Sony Corporation. Active years: 1996-2015.
Location History:
- Nagaokakyo, JP (1996)
- Tokyo, JP (2006 - 2015)
Company Filing History:



Years Active: 1996-2015
Title: Haruo Watanuki: Innovator in Exhaust Gas Recirculation Technology
Introduction
Haruo Watanuki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of exhaust gas recirculation technology, holding a total of 8 patents. His innovative designs have advanced the efficiency and functionality of internal combustion engines.
Latest Patents
Watanuki's latest patents include a drop-in type of exhaust gas recirculation valve and an EGR valve device. The drop-in type of exhaust gas recirculation valve features an attachment system that communicates with the exhaust gas circulation passage of an internal combustion engine. This system includes a water-cooled passage for cooling the exhaust gas, enhancing the overall performance of the engine. The EGR valve device consists of a housing with an exhaust gas passage, a support shaft, and a valve that opens and closes the passage. This design incorporates an actuator and a valve seat that ensures efficient operation.
Career Highlights
Throughout his career, Watanuki has worked with notable companies such as Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the automotive sector.
Collaborations
Watanuki has collaborated with esteemed colleagues, including Sotsuo Miyoshi and Satoru Hasegawa. Their combined expertise has fostered innovation and development in their respective fields.
Conclusion
Haruo Watanuki's contributions to exhaust gas recirculation technology exemplify his dedication to innovation. His patents and collaborations have significantly impacted the automotive industry, showcasing the importance of inventive minds in advancing technology.