Location History:
- Katsuta, JP (1992 - 1993)
- Ibaraki, JP (2006)
- Hitachinaka, JP (2004 - 2012)
- Tsukuba, JP (2005 - 2015)
Company Filing History:
17 out of 1,641 
1 out of 61 
1 out of 2,953 
Years Active: 1992-2015
Title: Keiji Sumiya: Pioneering Inventor from Tsukuba
Introduction:
Keiji Sumiya's dedication to innovation and relentless pursuit of excellence have solidified his reputation as a visionary inventor in the global tech community. His contributions continue to inspire future generations of inventors to think outside the box and create a better world through technology.
Latest Patents:
Sumiya's expertise is evident in his latest patents:
1. Inorganic optical filter, optical element, and light source: A groundbreaking invention utilizing NdFsingle crystal and ferroelectric fluoride single crystal for advanced optical applications.
2. Adhesive composition for semiconductor devices: An adhesive composition incorporating epoxy resin, curing agent, and polymer compound to enhance semiconductor device mounting processes.
Career Highlights:
Keiji Sumiya has left a significant mark in the industry through his work with renowned companies, including:
1. Hitachi Chemical Company, Ltd.: A leading company in chemical products and materials where Sumiya honed his skills in research and development.
2. National Institute of Radiological Sciences: Sumiya's contributions to cutting-edge research in radiological sciences have been invaluable in advancing healthcare technologies.
Collaborations:
Sumiya's collaborative spirit is evident through his work with esteemed coworkers such as:
1. Hiroyuki Ishibashi: A talented colleague who has worked alongside Sumiya on various innovative projects.
2. Yasushi Shimada: Another valuable collaborator whose expertise has complemented Sumiya's own in pushing the boundaries of technological innovations.
Conclusion:
Keiji Sumiya's passion for innovation and commitment to excellence have set him apart as a visionary inventor whose work continues to shape the world of technology. His collaborations with top-tier companies and talented coworkers highlight his dedication to pushing the boundaries of what is possible in the realm of inventions and patents.