Location History:
- Hachioji, JP (2004 - 2013)
- Tokyo, JP (2003 - 2015)
- Hachiooji, JP (2013 - 2015)
- Kawasaki, JP (2012 - 2020)
Company Filing History:
23 out of 356 
4 out of 256 
2 out of 1,715 
Years Active: 2003-2020
Title: Innovations and Patents of Koji Tsunekawa
Introduction: Koji Tsunekawa, an accomplished inventor based in Kawasaki, Japan, has made significant contributions to the field of technology, particularly through his inventive work on sputtering apparatus and magnetoresistive devices. With a remarkable portfolio of 28 patents, Tsunekawa has been at the forefront of innovations that have shaped modern manufacturing processes.
Latest Patents: Tsunekawa's latest patents include a "Sputtering Apparatus" and a "Method of Manufacturing Magnetoresistive Device." The sputtering apparatus features a substrate holder and a cathode unit strategically positioned to enhance the film deposition process. The holder rotation controller is designed to optimize rotation speeds based on the cathode unit's position to facilitate effective coating on substrate surfaces. In his method for manufacturing magnetoresistive devices, Tsunekawa describes a technique for forming an MgO layer between ferromagnetic layers, emphasizing the use of substances with a substantial getter effect to ensure high-quality film formation.
Career Highlights: Over the years, Tsunekawa has worked with notable companies such as Canon Anelva Corporation and Anelva Corporation. His expertise and innovative spirit have been crucial in driving advancements in technology and enhancing manufacturing capabilities in his areas of focus.
Collaborations: Throughout his career, Tsunekawa has collaborated with talented individuals, including David Djulianto Djayaprawira and Yoshinori Nagamine. These partnerships have fostered a creative environment that facilitates the development of groundbreaking technologies.
Conclusion: Koji Tsunekawa is a prolific inventor whose contributions to sputtering technology and magnetoresistive devices are highly regarded in the industry. With 28 patents to his name and a commitment to innovation, Tsunekawa continues to influence the technological landscape in meaningful ways. His work exemplifies how dedicated inventors can drive progress and shape the future of manufacturing.