Mishima, Japan

Masatoshi Ohara

This inventor holds 2 USPTO granted patents. Top assignee: Toshiba Kikai Kabushiki Kaisha. Active years: 2019-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masatoshi Ohara. Retrieved from https://idiyas.com/inventor/masatoshi-ohara-9f070yg4

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 1(Granted Patents)


Location History:

  • Numazu, JP (2019)
  • Mishima, JP (2020)

Company Filing History:


Years Active: 2019-2020

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2 patents (USPTO):Explore Patents

Title: Masatoshi Ohara: Innovator in Twin-Screw Extrusion Technology

Introduction

Masatoshi Ohara is a prominent inventor based in Mishima, Japan. He has made significant contributions to the field of extrusion technology, particularly through his innovative designs and methods. With a total of 2 patents, Ohara's work has enhanced productivity in material processing.

Latest Patents

Ohara's latest patents include a twin-screw extruder that features a variable diameter of screws and a kneading method utilizing this extruder. One embodiment of his invention provides a twin-screw extruder designed for kneading materials with exceptional productivity. The extruder comprises screws that include double thread screws, where the first screw portions engage with each other. The ratio of the external diameter (D) of the first screw portion to the shaft distance (C) ranges from 1.25 to 1.40. Additionally, the screws feature triple thread screws, with the third screw portions also engaging with each other, and the ratio of D to C for these portions ranges from 1.05 to 1.10. The external diameter of the second screw portion gradually decreases from the first screw portion toward the third screw portion. The design also includes a liner-type barrel, which consists of a barrel main body, a sleeve, and a fixing mechanism. The barrel main body has a cylindrical barrel hole with a slit that divides its inner circumferential surface. The sleeve, which is hollow and cylindrical, is removably incorporated into the barrel hole, ensuring a close fit without any gaps.

Career Highlights

Masatoshi Ohara is associated with Toshiba Kikai Kabushiki Kaisha, where he has been instrumental in advancing the company's technological capabilities. His innovative approach to extrusion technology has positioned him as a key figure in the industry.

Collaborations

Ohara has collaborated with notable coworkers, including Akiyoshi Kobayashi and Toshiki Nakazawa, contributing to the development of cutting-edge technologies in their field.

Conclusion

Masatoshi Ohara's contributions to twin-screw extrusion technology exemplify his innovative spirit and dedication to enhancing productivity in material processing. His patents reflect a deep understanding of engineering principles and a commitment to advancing technology.

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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