Location History:
- Kashihara, JP (1981 - 1985)
- Osaka, JP (1990 - 2001)
- Nara, JP (2001)
- Kashiwara, JP (1994 - 2002)
Company Filing History:
9 out of 176 
2 out of 13 
1 out of 407 Years Active: 1981-2002
Title: The Innovative Mind of Shigeyasu Inoue: A Glimpse into His Contributions
Introduction: Shigeyasu Inoue is a prominent inventor based in Kashiwara, Japan, known for his significant contributions to the field of writing instruments. With a remarkable portfolio of 12 patents, Inoue has developed innovative solutions that enhance the functionality and usability of penpoint applicators.
Latest Patents: Among his latest inventions are the "Penpoint Tip" and an "Applicator Having the Tip Incorporated Therein." This invention presents an applicator composed of a shaft, an inking core, and a cap, featuring a penpoint tip equipped with an ink reservoir, a connector, and a valve. The unique design of the penpoint tip includes six balls arranged in a row at the distal end, with each ball partly exposed through a slit-shaped opening of the tip body. Furthermore, Inoue's work on an ink applicator includes an ink backflow prevention mechanism, ensuring that the ink does not blur and facilitates smooth writing. This system comprises an ink reservoir, a valve mechanism, and a penpoint tip, characterized by a spherical portion on the valve body that effectively manages ink flow during various writing positions.
Career Highlights: Over the years, Shigeyasu Inoue has contributed his expertise to notable companies such as Sakura Color Products Corporation and Kabushiki Kaisha Sakura Kurepasu. His innovations have played a vital role in advancing the design and functionality of writing instruments, making a lasting impact in the industry.
Collaborations: Inoue has collaborated with talented individuals like Tatsuya Ozu and Masahiro Yasunaga, working together to refine and develop groundbreaking technology in the realm of ink applicators. Their combined efforts have led to advancements in ink application methods, showcasing the importance of teamwork in the field of innovation.
Conclusion: Shigeyasu Inoue's innovative spirit and dedication to improving writing instruments through his inventions exemplify the essence of creativity and problem-solving. With numerous patents to his name, his contributions continue to influence the design and functionality of penpoint applicators, inspiring future generations of inventors and innovators.