Location History:
- Hyogo, JP (2009)
- Itami, JP (2008 - 2011)
Company Filing History:
7 out of 10,239 
2 out of 80 
Years Active: 2008-2011
Title: The Innovations of Sadamu Ishidu
Introduction
Sadamu Ishidu is a prominent inventor based in Itami, Japan, known for his significant contributions to the field of semiconductor technology. With a total of nine patents to his name, Ishidu has made remarkable advancements in light-emitting devices and their mounting mechanisms. His work has had a profound impact on the efficiency and reliability of semiconductor components.
Latest Patents
Ishidu's latest patents include a semiconductor light-emitting element mounting member and a semiconductor light-emitting device employing it. The mounting member features an improved effective light reflectivity in a metal film that serves as an electrode layer and/or a reflective layer. This innovation enhances the adhesion of the metal layer to a substrate, improving mechanical strength, reliability, and light-emitting characteristics. The semiconductor light-emitting element mounting member, also known as a submount, is created by forming metal films from silver (Ag), aluminum (Al), or alloys containing these metals on a substrate. The crystal grains of the metal films have a particle diameter of no more than 0.5 μm, and the center-line average roughness Ra of the surface is no more than 0.1 μm. Additionally, his patent on a semiconductor element mount includes a collective substrate with through-holes that have tapered surfaces, enhancing the functionality of imaging devices and light-emitting diode components.
Career Highlights
Throughout his career, Sadamu Ishidu has worked with notable companies such as Sumitomo Electric Industries, Limited and A.L.M.T. Corporation. His experience in these organizations has allowed him to refine his expertise in semiconductor technologies and contribute to various innovative projects.
Collaborations
Ishidu has collaborated with esteemed colleagues, including Yasushi Tsuzuki and Kenjiro Higaki. Their combined efforts have led to advancements in semiconductor technology and the development of cutting-edge devices.
Conclusion
Sadamu Ishidu's contributions to the field of semiconductor technology are noteworthy, with his innovative patents enhancing the performance and reliability of light-emitting devices. His work continues to influence the industry and pave the way for future advancements.
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.