Company Filing History:
Years Active: 2020-2025
Title: The Innovative Mind of Rena Onitsuka
Introduction
Rena Onitsuka is a prominent inventor based in Kobe, Japan, known for her contributions to tire technology. With a total of four patents to her name, Onitsuka is recognized for her innovative designs and improvements in the performance of pneumatic tires.
Latest Patents
One of Rena Onitsuka's latest patents involves the design of a pneumatic tire. This patent outlines a tire structure comprising a tread portion with a ground-contacting surface, sidewall portions with an outer surface, bead portions, and a carcass extending between the bead portions. Notably, the inner rubber of the tire consists of a first portion through the tread with a greater thickness compared to a second portion in the sidewall. The patent specifies that, under normal conditions, the length of the shoulder line segment should range from 85.9% to 89.3% of the length of the reference line segment in a meridian cross-section of the tire.
Another significant patent addresses a tire mold and production method, which includes a tread-forming surface designed to shape the tread surface efficiently. This mold features projections to create circumferential grooves and land surface-forming portions that define the land surfaces of the tire. The intricacies of the mold design, such as the curved land surface-forming portion represented by circular arcs, illustrate Onitsuka's commitment to enhancing tire manufacturing processes.
Career Highlights
Rena Onitsuka has made substantial contributions to the field of tire innovation while working with Sumitomo Rubber Industries Limited. Her work focuses on improving tire durability and performance, aligning with the company's mission to lead in rubber technology.
Collaborations
During her career, Onitsuka has collaborated with esteemed coworkers, including Isao Sawakami and the talented inventor Yuan Suxiang. These collaborations are vital in driving forward innovative tire solutions and enhancing the overall quality of their products.
Conclusion
Rena Onitsuka stands out as an innovative force in the tire industry, with her patents reflecting her dedication to improving technology and pushing boundaries. Her work with Sumitomo Rubber Industries Limited and her collaborations with fellow inventors demonstrate a strong commitment to excellence and innovation in tire engineering. Her contributions not only benefit her company but also impact the broader automotive industry, showcasing her significance as a modern inventor.