Location History:
- Kawasaki, JP (2019)
- Hachioji, JP (2018 - 2024)
Company Filing History:
9 out of 4,804 
1 out of 4 Years Active: 2018-2025
Title: Hirohiko Watanabe: Innovator in Solder Materials
Introduction
Hirohiko Watanabe is a notable inventor based in Hachioji, Japan. He has made significant contributions to the field of solder materials, holding a total of nine patents. His work focuses on enhancing the properties of solder materials used in semiconductor devices.
Latest Patents
Watanabe's latest patents include a solder material designed to exhibit excellent thermal-cycle fatigue properties and wettability. This solder material comprises between 6.0% and 8.0% by mass of antimony (Sb), 3.0% to 5.0% by mass of silver (Ag), with the remainder being tin (Sn) and incidental impurities. Additionally, he has developed a solder joint that features a melted solder material primarily containing Sn, along with Ag, Sb, and/or copper (Cu). This solder joint is designed to work in conjunction with a joined body that includes a nickel-phosphorus-copper (Ni—P—Cu) plating layer, enhancing the overall performance of the solder joint.
Career Highlights
Throughout his career, Watanabe has worked with prominent companies such as Fuji Electric Co., Ltd. and Nihon Handa Co., Ltd. His experience in these organizations has allowed him to refine his expertise in solder materials and semiconductor technology.
Collaborations
Watanabe has collaborated with notable coworkers, including Shunsuke Saito and Yoshitaka Nishimura. Their combined efforts have contributed to advancements in the field of solder materials.
Conclusion
Hirohiko Watanabe's innovative work in solder materials has significantly impacted the semiconductor industry. His patents reflect a commitment to improving the performance and reliability of solder joints in electronic devices.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.