Location History:
- Mobara, JA (1976)
- Mobara, JP (1980 - 1983)
- Chiba, JP (1988 - 2011)
Company Filing History:
23 out of 1,207 
11 out of 42,485 
5 out of 217 
Years Active: 1976-2011
Title: Shigemi Hirasawa: Pioneer in Display Technology
Introduction: Shigemi Hirasawa is a prominent inventor based in Chiba, Japan, known for his significant contributions to the field of display technology. With a remarkable portfolio of 38 patents, Hirasawa has demonstrated an exceptional ability to innovate and improve materials used in display apparatus, especially those involving bonding and sealing glass.
Latest Patents: Hirasawa's latest patents focus on advanced glass bonding materials. One such patent details a composition that includes vanadium and phosphor as primary components, with specified weight percentages. This bonding material contains 45 to 60% by weight of vanadium oxide (VO), 15 to 30% by weight of phosphorus oxide (PO), and 5 to 25% by weight of barium oxide (BaO). Another patent presents a sealing glass made from a low melting point phosphate glass that similarly includes 15 to 35% of BaO and antimony oxide (SbO) in total, with a critical weight ratio between these components not exceeding 0.3. Hirasawa also innovated a bonding material combining a filler with a vanadate-phosphate glass, optimizing the percentages of each component for enhanced performance.
Career Highlights: Throughout his career, Hirasawa has worked with esteemed companies such as Hitachi Displays and Hitachi, where he made valuable contributions to the development of display technologies. His experience in these organizations has played a pivotal role in shaping his innovative designs and patents in glass composition used in the display industry.
Collaborations: Hirasawa has collaborated with notable colleagues, including Yuuichi Kijima and Yoshiyuki Kaneko. Together, they have worked on advancing technologies that have the potential to revolutionize display applications through improved materials and methods.
Conclusion: Shigemi Hirasawa's impressive array of patents and collaborations underscores his pivotal role in the advancement of display technology. His innovations in glass bonding materials are likely to have a lasting impact on the industry, paving the way for more efficient and effective display apparatus designs. As he continues to push the boundaries of material science, Hirasawa remains a prominent figure in the world of inventions and patents.
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.