This inventor holds 2 USPTO granted patents. Top assignee: Bridgestone Corporation. Active years: 1986-1988.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokorozawa, JP (1986)
- Kuroiso, JP (1988)
Company Filing History:
Years Active: 1986-1988
Title: Keiji Yamamoto: Innovator in Rubber Extrusion Technology
Introduction
Keiji Yamamoto is a notable inventor based in Tokorozawa, Japan. He has made significant contributions to the field of rubber extrusion technology, holding 2 patents that showcase his innovative approach to engineering.
Latest Patents
Yamamoto's latest patents include the Variable Contour Rubber Extruder and the Rotary Roll-Type Rubber Extruder. The Variable Contour Rubber Extruder features a rotary driving roller and a main body that forms an eccentric arc chamber. This design allows for a movable mouthpiece that creates an opening of variable sectional area for extruding rubber material. The movable mouthpiece consists of a center piece that can be adjusted toward and away from the barrel surface of the rotary driving roller, along with a pair of side pieces that are slidably adjustable.
The Rotary Roll-Type Rubber Extruder includes a roll with an outer cylindrical surface that is rotatively driven. It features a housing with a stationary concave surface that is spaced from the rotating outer cylindrical surface, forming a defined chamber. A mouthpiece is detachably secured to the housing, creating an extruding opening at the outlet of the defined chamber. The design ensures that pressure gradients at the mouthpieces are maintained within specific quadrilateral areas, optimizing the extrusion process.
Career Highlights
Yamamoto is currently employed at Bridgestone Corporation, where he continues to develop innovative solutions in rubber technology. His work has significantly impacted the efficiency and effectiveness of rubber extrusion processes.
Collaborations
Some of his notable coworkers include Jumei Harada and Takashi Yokoi, who have collaborated with him on various projects within the company.
Conclusion
Keiji Yamamoto's contributions to rubber extrusion technology through his patents and work at Bridgestone Corporation highlight his role as an influential inventor in the industry. His innovative designs continue to shape the future of rubber processing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile