This inventor holds 9 USPTO granted patents and 3 published patent applications and 1 EPO patent. Top assignees: Hitachi-High-Technologies Corporation, Hitachi, Ltd., Roche Diagnostics Operations, Inc.. Active years: 2006-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiyoda, JP (2006)
- Toride, JP (2008 - 2010)
- Tokyo, JP (2012 - 2014)
Company Filing History:
6 out of 2,874 
3 out of 42,752 
1 out of 1,700 
Years Active: 2006-2026
Title: Hironobu Yamakawa: Innovator in Electric Propulsion and Chemical Analysis
Introduction
Hironobu Yamakawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of electric propulsion and chemical analysis, holding a total of eight patents. His innovative designs reflect a deep understanding of engineering principles and a commitment to advancing technology.
Latest Patents
Among his latest patents is an electric propulsion device that features a propeller and a motor for rotating the propeller. This device includes a rotary boss secured to the rotating shaft of the motor, with blades that protrude radially outward from the rotary boss. The blades are designed with a base end portion that has an airfoil continuously changing, allowing the trailing edge to align parallel to the rotating shaft of the motor from the outer side to the rotary boss. Another notable patent is for an automatic chemical analyzer, which stirs a reaction solution using air ejected from an air ejection hole positioned above a reaction container. This design allows for effective washing and cleaning of the reaction region without damaging the coating reagent. The reaction container disk is equipped with a pore and a pressure detector, ensuring precise control during the stirring operation.
Career Highlights
Hironobu Yamakawa has worked with notable companies such as Hitachi High-Technologies Corporation and Hitachi, Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Yamakawa has collaborated with esteemed colleagues, including Hideo Enoki and Sakuichiro Adachi. These partnerships have fostered a creative environment that encourages the exchange of ideas and expertise.
Conclusion
Hironobu Yamakawa's contributions to electric propulsion and chemical analysis demonstrate his innovative spirit and technical prowess. His patents reflect a commitment to improving technology and enhancing efficiency in various applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile