Location History:
- Osaka, JP (1986 - 2001)
- Ibaraki, JP (2001)
Company Filing History:
6 out of 3,871 
3 out of 172 
Years Active: 1986-2001
Title: Chiharu Miyaake: Innovator in Flexible Wiring Technologies
Introduction: Chiharu Miyaake, hailing from Osaka, Japan, is an accomplished inventor known for his significant contributions to the field of flexible wiring technology. With a remarkable portfolio of nine patents, Miyaake has paved the way for advancements in the way electrical connections are made in modern devices.
Latest Patents: Among his latest innovations, Miyaake has developed two noteworthy flexible wiring boards. The first patent details a flexible wiring board designed to exhibit a sufficient flex life under high-temperature working conditions. This innovation features an insulation layer on both surfaces of a conductor layer. The layer's properties ensure it can endure complex shear modulus values ranging from 1.0×10 to 4×10 dyn/cm at a temperature of 60°C and a frequency of 25 Hz.
The second patent introduces a flexible wiring board that incorporates a gold pad. This pad possesses a dynamic Vickers hardness of not less than 50 and ensures connection reliability when interfacing with semiconductor devices through wire bonding. The unique composition also limits the ratio of nickel in the surface of the gold pad to the thickness of gold, providing durability and performance in electrical applications.
Career Highlights: Miyaake’s professional journey has taken him through notable companies such as Nitto Denko Corporation and Nitto Electric Industrial Co., Ltd. His work in these organizations has facilitated the development of innovative technologies, reflecting his dedication and expertise in electrical engineering.
Collaborations: Throughout his career, Miyaake has collaborated with distinguished colleagues, including Toshihiko Sugimoto and Akio Tsumura. These partnerships have contributed to the sharing of knowledge and the fostering of innovation in the field of flexible wiring technologies.
Conclusion: Chiharu Miyaake stands out as an influential figure in the realm of electrical innovations. His patents, especially in flexible wiring boards, highlight his commitment to enhancing connection reliability and performance in electronic devices. As the industry continues to evolve, Miyaake's contributions remain foundational, inspiring future advancements in electrical engineering.