This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Pentel Kabushiki Kaisha. Active years: 2014-2016.
Company Filing History:
Years Active: 2014-2016
Title: Aya Otsubo: Innovator in Ink Technology
Introduction
Aya Otsubo is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of ink technology, particularly in the development of innovative ink compositions for ballpoint pens. With a total of 2 patents, her work has garnered attention for its practical applications and advancements in writing technology.
Latest Patents
Otsubo's latest patents include an "Oily ink composition for ballpoint pens." This oil-based ink composition features a viscosity of 200,000 mPa·s or more at a shear rate of 0.019 and 5,000 mPa·s or less at a shear rate of 10,000. The composition ensures a thin-width writing line without bleeding or feathering, preventing ink-depleted regions and resulting in a uniform and clear writing line. Another notable patent is for "Ink for ballpoint pens and ballpoint pen using the same." This ink composition comprises a coloring agent, a liquid medium, and various phosphoric acid derivatives, enhancing the performance and quality of ballpoint pens.
Career Highlights
Aya Otsubo is currently employed at Pentel Kabushiki Kaisha, a well-known company in the writing instrument industry. Her role involves research and development, focusing on creating high-quality ink products that meet consumer needs. Otsubo's innovative spirit and dedication to her craft have positioned her as a key player in her field.
Collaborations
Throughout her career, Otsubo has collaborated with talented individuals such as Yoshitaka Morimoto and Ikuo Takagishi. These partnerships have allowed her to enhance her research and contribute to the development of cutting-edge ink technologies.
Conclusion
Aya Otsubo's contributions to ink technology exemplify her innovative mindset and commitment to excellence. Her patents reflect a deep understanding of material science and practical applications in everyday writing instruments. Otsubo continues to inspire future generations of inventors in the field of writing technology.