Location History:
- Hiroshima, JP (2018)
- Higashihiroshima, JP (2011 - 2021)
Company Filing History:
4 out of 246 
3 out of 36,713 
Years Active: 2011-2021
Title: The Innovative Contributions of Yoshitsugu Kojima
Introduction
Yoshitsugu Kojima is a notable inventor based in Higashihiroshima, Japan. With a remarkable portfolio of four patents, he has made significant contributions to advancements in battery technology and materials science. His innovative spirit is evident in both his latest patents and his career achievements.
Latest Patents
One of Kojima's latest inventions is a high-pressure type hydride secondary battery. This innovative battery consists of a pressure vessel containing both a positive and a negative electrode, along with hydrogen gas. The unique feature of this battery lies in the negative electrode, which is composed of a hydrogen-absorbing alloy. In a pressure-composition-temperature diagram, the desorption curve at 25°C indicates a plateau pressure between 0.15 MPa and 10 MPa. The hydrogen gas in the pressure vessel is maintained at a pressure that meets or exceeds the plateau pressure for optimal performance.
Another noteworthy patent by Kojima involves a method for producing a metal nanoparticle complex. This method allows metal nanoparticles to be supported within the pores of a porous body. It consists of an adsorption step, where an organic metal complex is allowed to adhere to the pores, followed by a decomposition and reduction step. During this latter phase, the porous body is heated in a reductive atmosphere, leading to the decomposition of the organic compound and the reduction of metal cations to form the complex.
Career Highlights
Throughout his career, Yoshitsugu Kojima has collaborated with prestigious organizations, including Hiroshima University and Toyota Motor Corporation. His work in these institutions has allowed him to apply his innovative ideas to practical applications, further fostering his reputation in the field of invention.
Collaborations
In his professional journey, Kojima has had the opportunity to work alongside esteemed colleagues such as Takayuki Ichikawa and Kyoichi Tange. These collaborations have likely enriched his work, allowing for a shared exchange of ideas and fostering innovation.
Conclusion
Yoshitsugu Kojima stands out as a creative inventor whose contributions to hydride secondary battery technology and metal nanoparticle production have the potential to shape the future of energy storage and materials engineering. His dedication to innovation and collaboration with reputable organizations showcases the impactful role that inventors play in advancing technology. As he continues to develop groundbreaking inventions, the field eagerly anticipates what Kojima will create next.