This inventor holds 4 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Lenovo (Singapore) Pte. Ltd., Senju Metal Industry Co., Ltd., Murata Manufacturing Co., Ltd.. Active years: 2012-2023.
Location History:
- Edogawa-ku, JP (2012)
- Tokyo, JP (2021 - 2023)
Company Filing History:


Years Active: 2012-2023
Title: Innovations by Ko Inaba
Introduction
Ko Inaba is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electronics, particularly in soldering technology. With a total of 4 patents to his name, Inaba's work has had a considerable impact on the industry.
Latest Patents
One of his latest patents is focused on a solder joint designed for bonding an electrode of a circuit board to an electrode of an electronic component. This solder joint includes an Sn–Bi-based solder deposited on the electrode of the circuit board, along with a solder alloy deposited on the electrode of the electronic component. The Sn–Bi-based solder alloy has a lower melting point than the solder alloy on the electronic component. Additionally, fine Bi phases in the solder joint have an area of less than or equal to 0.5 μm, while coarse Bi phases range from greater than 0.5 μm to less than or equal to 5 μm. Notably, the proportion of fine Bi phases is greater than or equal to 60%. Another patent details a solder bonding method that utilizes this solder joint, which involves specific heating and cooling processes to ensure optimal bonding.
Career Highlights
Throughout his career, Ko Inaba has worked with prominent companies such as Senju Metal Industry Co., Ltd. and Lenovo (Singapore) Pte. Ltd. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the electronics sector.
Collaborations
Inaba has collaborated with notable coworkers, including Tetsu Takemasa and Tadashi Kosuga. Their combined expertise has fostered a creative environment that has led to advancements in soldering technology.
Conclusion
Ko Inaba's contributions to the field of electronics through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future advancements in soldering technology.