This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignees: Daicel Chemical Industries, Ltd., Kokuyo Co., Ltd.. Active years: 2003-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Osaka, JP (2003 - 2012)
- Himeji, JP (2005 - 2012)
Company Filing History:
Years Active: 2003-2012
Title: Kiyoshi Shimizu: Innovator in Porous Film Technology and Toy Design
Introduction
Kiyoshi Shimizu is a notable inventor based in Osaka, Japan. He has made significant contributions to the fields of material science and toy design, holding a total of 5 patents. His innovative work focuses on creating advanced materials and engaging products that enhance user experience.
Latest Patents
One of Shimizu's latest patents is for a porous film and multilayer assembly. The objective of this invention is to provide a multilayer assembly that excels in pore properties, is flexible, and can be satisfactorily handled and processed. The multilayer assembly consists of a base with a porous layer arranged on at least one side, featuring a large number of continuous micropores with an average pore diameter ranging from 0.01 to 10 micrometers. This assembly demonstrates no interfacial delamination between the base and the porous layer when subjected to a tape peeling test, ensuring its durability and reliability.
Another notable invention is a toy building block designed to create cubic articles by assembling unit pieces. The unit piece comprises a plate body made of flexible material, with an outer profile formed by curved short and long sides. It includes projections at the corner portions and through holes for fitting these projections, allowing for versatile assembly and creativity in play.
Career Highlights
Throughout his career, Kiyoshi Shimizu has worked with prominent companies such as Daicel Chemical Industries and Kokuyo Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative materials and products.
Collaborations
Shimizu has collaborated with talented individuals in his field, including Yo Yamato and Takayuki Asano. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions.
Conclusion
Kiyoshi Shimizu is a distinguished inventor whose work in porous film technology and toy design has made a lasting impact. His innovative spirit and dedication to enhancing user experience continue to inspire future advancements in these fields.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

