Location History:
- Shizuoka-Ken, JP (1999)
- Numazu, JP (2000)
- Shizuoka, JP (2000 - 2009)
- Sunto-gun, JP (2010 - 2023)
- Tokyo, JP (2023)
Company Filing History:
8 out of 746 
4 out of 60 
2 out of 113 
Years Active: 1999-2023
Title: **Innovative Contributions of Koji Mizunuma**
Introduction
Koji Mizunuma, an accomplished inventor based in Sunto-gun, Japan, has made significant contributions to technology with a focus on optical sheet forming devices and methods. With a remarkable portfolio of 14 patents, Mizunuma's innovations continue to shape the industry.
Latest Patents
Among his latest inventions, Mizunuma has developed an **Optical Sheet Forming Device and Optical Sheet Forming Method**. This advanced extruding unit features an ejecting slit that expels sheet-shaped molten resin. It incorporates both a standard gap portion, with a consistent size, and an enlarged gap portion situated at positions corresponding to thick portions. Additionally, a thick portion forming mechanism is integrated, allowing for the continuous formation of one or several thick portions in the molten resin during extrusion. Another notable patent is the **Double-Sided Transcription Type Sheet/Film Forming Roll Apparatus and Method**, which includes two rolls with patterned surfaces, motors for rotation, and mechanisms for adjusting axial positions. This design ensures that the shaft direction and positions of both patterns remain consistent, enhancing the efficiency of the manufacturing process.
Career Highlights
Koji Mizunuma has lent his expertise to prominent companies, including Toshiba Kikai Kabushiki Kaisha and Shibaura Machine Co., Ltd. His career is marked by a dedication to innovation in engineering and manufacturing processes, particularly in optical technologies.
Collaborations
Throughout his career, Mizunuma has collaborated with talented individuals such as Satoru Nitta and Tomonori Yamaguchi. These partnerships have fostered an environment of creativity and propelled advancements in the fields they explore, paving the way for future innovations.
Conclusion
Koji Mizunuma stands out as a significant figure in the realm of inventions, with his 14 patents illustrating his commitment to technological advancement. His continuous work in optical engineering is not only a testament to his ingenuity but also represents a vital contribution to the industry, inspiring future generations of inventors.