Hiroshima, Japan

Masamichi Ishibashi

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignees: Sumitomo Chemical Company, Limited, The Japan Steel Works, Ltd.. Active years: 1998-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masamichi Ishibashi. Retrieved from https://idiyas.com/inventor/masamichi-ishibashi-e6nt9bbj

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0


Average Co-Inventor Count = 3.8

ph-index = 1

Forward Citations = 14(Granted Patents)


Company Filing History:


Years Active: 1998-2011

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3 patents (USPTO):Explore Patents

Title: Masamichi Ishibashi: Innovator in Thermoplastic Technology

Introduction

Masamichi Ishibashi is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of thermoplastic elastomers, holding a total of 3 patents. His work has been instrumental in advancing the technology used in various industrial applications.

Latest Patents

Ishibashi's latest patents include a kneading extruder that features twist kneading disks. These disks are designed with a width that is 0.1 to 0.5 times the cylinder inner diameter D. The helix angle θ, which is the angle between the vertex of the front surface side of the disk and the vertex of the rear surface side at the tip portion, ranges from 0° to 90° in the reverse rotating direction of the screws. Additionally, the phase angle E, which correlates the disks around the screw shaft, is also within the range of 0° to 90°. The twist kneading disks are incorporated in the plasticization kneading portion at a length of more than 1.88 times the cylinder inner diameter D. Another significant patent is a process for producing a thermoplastic elastomer composition, which involves specific steps to achieve the desired material properties.

Career Highlights

Throughout his career, Ishibashi has worked with prominent companies such as Sumitomo Chemical Company, Limited and The Japan Steel Works, Ltd. His experience in these organizations has allowed him to refine his expertise in materials science and engineering.

Collaborations

Ishibashi has collaborated with notable colleagues, including Tatsuo Hamanaka and Yuji Goto. These partnerships have contributed to the development of innovative solutions in the field of thermoplastics.

Conclusion

Masamichi Ishibashi's contributions to thermoplastic technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in material science and engineering.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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