This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignees: Prime Planet Energy & Solutions, Inc., Toyota Jidosha Kabushiki Kaisha, Toyota Battery Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 320 
2 out of 38,970 
1 out of 17 Years Active: 2026
Title: The Innovations of Toshiki Yoneyama
Introduction
Toshiki Yoneyama is a notable inventor based in Toyohashi, Japan. He has made significant contributions to the field of battery technology, holding 2 patents that focus on methods for testing and manufacturing secondary batteries. His work is crucial in advancing the efficiency and reliability of power storage devices.
Latest Patents
Yoneyama's latest patents include a "Method of self-discharge test for secondary battery" and a "Manufacturing method for secondary battery." The self-discharge test method involves a process of voltage adjustment to set a battery voltage to a first battery voltage. This is followed by a self-discharge testing process that keeps the battery in a terminal open state for a predetermined term. The aim is to inspect the state of self-discharge of the battery by observing variations in battery voltage during this period. The voltage adjustment is designed to ensure that the variation settled time is 17 hours or less.
His second patent, which focuses on inspecting a power storage device for short circuits, includes several steps. These steps involve adjusting batteries after initial charging, measuring pre-leaving and post-leaving voltages, and determining whether each battery is short-circuited based on actual and estimated voltage drop rates.
Career Highlights
Throughout his career, Toshiki Yoneyama has worked with prominent companies in the automotive and energy sectors. He has been associated with Prime Planet Energy & Solutions, Inc. and Toyota Motor Corporation. His experience in these organizations has allowed him to contribute to innovative battery technologies that enhance energy storage solutions.
Collaborations
Yoneyama has collaborated with various professionals in his field, including his coworker Hiroaki Ikeda. Their joint efforts have likely contributed to the advancements in battery technology and the successful development of new methods for testing and manufacturing batteries.
Conclusion
Toshiki Yoneyama's contributions to battery technology through his patents and career highlights demonstrate his commitment to innovation in energy storage solutions. His work continues to influence the development of more efficient and reliable power storage devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile