Company Filing History:
4 out of 42,488 
Years Active: 1998-2025
Title: Innovations by Yoshifumi Yamashita
Introduction
Yoshifumi Yamashita is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of musical instruments and document management systems. With a total of 5 patents to his name, his work reflects a blend of creativity and technical expertise.
Latest Patents
One of his latest patents is a wind instrument designed to have an expanded sound range. This invention features a predetermined sound interval interlocking mechanism that allows the opening and closing operations of sound hole covers to interlock with those of an expanded sound range. Additionally, it includes a sound hole switching mechanism that can collectively close the sound holes of the high-pitched range with a single key operation. This innovative design enables musicians to play both sound ranges seamlessly.
Another significant patent involves a document management and EDI system linkage unit. This invention centralizes the management of transaction document preparation history and EDI send and receive history. By linking document management and EDI means, it allows for efficient registration of sending information in version control for relevant transaction documents.
Career Highlights
Yoshifumi Yamashita is currently employed at Hitachi, Ltd., where he continues to develop innovative solutions. His work at Hitachi has allowed him to explore various technological advancements and contribute to the company's reputation for excellence in engineering.
Collaborations
Throughout his career, Yamashita has collaborated with talented individuals such as Hiromitsu Moriyama and Yumiko Seki. These collaborations have fostered a creative environment that encourages the exchange of ideas and innovation.
Conclusion
Yoshifumi Yamashita's contributions to the fields of musical instruments and document management systems highlight his inventive spirit and technical prowess. His patents not only enhance the functionality of existing technologies but also pave the way for future innovations.
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.