Location History:
- Tokyo, JA (1978)
- Utsunomiya, JP (1989)
- Tokyo, JP (1979 - 2003)
- Kashiwa, JP (2019)
- Chiba, JP (1990 - 2024)
Company Filing History:
8 out of 90,697 
8 out of 349 
2 out of 127 Years Active: 1978-2025
Title: Yoshiaki Hara: Innovator in Injection Molding Technology
Introduction
Yoshiaki Hara is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of injection molding technology. With a total of 12 patents to his name, Hara has developed innovative methods and apparatuses that enhance the efficiency and precision of injection molding processes.
Latest Patents
One of Hara's latest patents is a method of controlling a compression injection molding machine. This method involves using a pressure sensor to detect the reaction force produced at the movable die during resin injection. The sensor's output is utilized to control the injection of resin into the die cavity, as well as the thickness of the resin. Additionally, it can manage gate cutting and resin injection speed, showcasing Hara's focus on precision and efficiency.
Another notable patent is for an electrically-operated injection molding machine. This apparatus is equipped with servo mechanisms that provide precise feedback control for various functions, including resin weighing, blending, and injection. The use of servo mechanisms ensures consistent accuracy in motion and allows for increased cycle speeds without sacrificing precision.
Career Highlights
Throughout his career, Yoshiaki Hara has worked with several notable companies, including Kabushiki Kaisha Daini Seikosha and Seiko Instruments & Electronics Ltd. His experience in these organizations has contributed to his expertise in the field of injection molding technology.
Collaborations
Hara has collaborated with several talented individuals, including Fumikazu Murakami and Ichiro Horikoshi. These collaborations have likely played a role in the development of his innovative patents and advancements in the industry.
Conclusion
Yoshiaki Hara's contributions to injection molding technology through his patents and career achievements highlight his role as a leading inventor in this field. His innovative methods and apparatuses continue to influence the industry, showcasing the importance of precision and efficiency in manufacturing processes.