Location History:
- Fukuoka, JP (2015)
- Kitakyushu, JP (2016)
Company Filing History:
Years Active: 2015-2016
Title: Innovations by Shigehisa Shirakawa
Introduction
Shigehisa Shirakawa is a notable inventor based in Kitakyushu, Japan. He has made significant contributions to the field of toilet technology, holding a total of 2 patents. His work focuses on improving the performance and efficiency of flush toilets.
Latest Patents
Shirakawa's latest patents include innovative designs for flush toilets. One patent describes a flush toilet capable of completing the flushing of a bowl portion at or before the termination of a siphon action. This design enhances toilet flushing performance while using a reduced amount of flush water. The configuration allows for a sequential spouting of flush water from a first rim water spouting portion, followed by a jet water spouting portion and a second rim water spouting portion. Another patent presents a flush toilet that features a main unit cleaned by flush water. This design includes a reservoir tank for storing flush water, a bowl portion with a waste-receiving surface, and a drainage passage that expels waste through siphon action. The toilet is equipped with a rim water spouting port and a jet water spouting port, both designed to optimize the flushing process.
Career Highlights
Shirakawa is associated with Toto Ltd., a leading company in the sanitary ware industry. His work at Toto Ltd. has allowed him to focus on developing advanced toilet technologies that enhance user experience and environmental sustainability.
Collaborations
Shirakawa has collaborated with talented coworkers, including Jing Chen and Mayu Okubo. Their combined efforts contribute to the innovative projects at Toto Ltd.
Conclusion
Shigehisa Shirakawa's contributions to toilet technology through his patents reflect his commitment to innovation and efficiency. His work continues to influence the industry and improve everyday life for users around the world.