Location History:
- Tokyo, JP (1992 - 1999)
- Nagoya, JP (1998 - 1999)
- Matsue, JP (2007)
Company Filing History:
10 out of 128 
3 out of 32 
3 out of 218 
Years Active: 1992-2007
Title: Yasuji Yamada: Innovator in Oxide Crystal Technology
Introduction
Yasuji Yamada is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of oxide crystal technology. With a total of 14 patents to his name, Yamada has made remarkable advancements that have implications in various technological applications.
Latest Patents
One of Yamada's latest patents is a method for preparing an oxide crystal film/substrate composite. This innovative process involves forming a Y123 type oxide crystal film from a solution phase on a substrate using a liquid phase method. The method addresses critical issues such as cracking of the oxide crystal film, separation from the substrate, and the development of a reaction layer between the substrate and the solution. The solvent used for this process can be either a BaO–CuO–BaF system or a BaO–CuO–Ag–BaF system. Additionally, the temperature of the solution is controlled to not exceed 850°C during the growth of the oxide crystal film on the substrate.
Another notable patent involves a composite metal oxide material. This composite includes a substrate with an oriented film made of a Y123 metal oxide crystal, where the formula is LnBa₂Cu₃Oᵧ, with Ln representing Y or a lanthanoid element, and y being a number between 6 and 7. A layer of the same Y123 metal oxide is formed
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.