Location History:
- Yokohama, JP (1997)
- Higashiokitama-gun, JP (1999)
Company Filing History:
Years Active: 1997-1999
Title: Masao Hashi: Innovator in Applicator and Ball-Point Pen Technology
Introduction
Masao Hashi is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of writing instruments and applicators. With a total of 2 patents, Hashi's innovations reflect his commitment to enhancing user experience and functionality in everyday tools.
Latest Patents
One of Hashi's latest patents is an innovative applicator. This applicator features a barrel body and a holder with a ball house that includes an ejecting opening at the front end. The design allows liquid from the barrel body to flow out efficiently. A ball is held in the ball house, partially exposed through the ejecting opening, while a spherical evading member is positioned on the rear side of the ball. This evading member has a smaller diameter than the ball, ensuring smooth operation. Additionally, the applicator includes a ball seat and a liquid conduit with longitudinal grooves, enhancing the flow of liquid.
Another significant invention by Hashi is a metal tip for a ball-point pen. This design incorporates an ink guide hole at the center of the bottom surface of the ball holding portion. The ink guide hole is strategically sized, with a diameter 30 to 55% that of the ball and a length 1.2 to 2 times the diameter of the ink guide hole. The design also features radial grooves arranged around the ink guide hole, improving ink flow and performance. A specialized cleaning tool is included to remove any flash formed during the manufacturing process, ensuring the ink guide hole remains unobstructed.
Career Highlights
Masao Hashi is associated with Mitsubishi Pencil Kabushiki Kaisha, a company known for its high-quality writing instruments. His work at Mitsubishi Pencil has allowed him to focus on developing innovative solutions that enhance the functionality of everyday writing tools.
Collaborations
Hashi has collaborated with notable coworkers, including Masaaki Morita and Yasuyuki Iwase. Their combined expertise has contributed to the successful development of innovative products in the writing instrument industry.
Conclusion
Masao Hashi's contributions to the fields of applicators and ball-point pen technology demonstrate his innovative spirit and dedication to improving user experience. His patents reflect a deep understanding of design and functionality, making him a significant figure in the industry.