Location History:
- Ohgaki, JP (2001 - 2003)
- Motosu-gun, JP (2001 - 2003)
- Motosu, JP (2004)
- Moriguchi, JP (2006)
- Ogaki, JP (2000 - 2008)
- Gifu, JP (2001 - 2009)
- Mizuho, JP (2006 - 2009)
Company Filing History:
48 out of 8,776 
1 out of 58,129 
1 out of 832,680 Years Active: 2000-2009
Title: The Innovative Contributions of Tsutomu Yamada in Liquid Crystal Technology
Introduction
Tsutomu Yamada, a prominent inventor hailing from Gifu, Japan, has made significant strides in the field of liquid crystal display technology. With an impressive portfolio of 49 patents, Yamada's inventions have played a pivotal role in enhancing the performance and quality of display devices, significantly impacting industries worldwide.
Latest Patents
Among his latest contributions, Yamada has developed two innovative patents: a Transflective Liquid Crystal Display Device and a Color Liquid Crystal Display Device. The Transflective Liquid Crystal Display Device features a vertical alignment liquid crystal layer sealed between two substrates, each equipped with electrodes. His design includes both reflective and transmissive pixel regions, with an ingenious gap adjusting section that modulates the thickness of the liquid crystal layer. This innovative mechanism allows for superior control of light phase differences, optimizing the display performance across red, green, and blue colors.
In addition, his Display Apparatus and Manufacturing Method patent illustrates Yamada's advanced understanding of liquid crystal technology. This design encompasses a first substrate with a thin-film transistor (TFT) for each pixel, complemented by an insulating film and a reflective layer that enhances light reflection from the second substrate side. The addition of a passivation film further protects the reflective surface, ensuring consistent reflection properties during the TFT connection process. Yamada's innovative approach in these patents underscores his significant contributions to improving display technology.
Career Highlights
Throughout his career, Tsutomu Yamada has worked with renowned companies such as Sanyo Electric Co., Ltd., where he honed his skills and made substantial contributions to advancements in display technologies. His dedication to innovation has resulted in a wealth of patented technologies that continue to influence the field of electronics.
Collaborations
Yamada has collaborated with eminent individuals in his field, including Kiyoshi Yoneda and Nobuhiko Oda. These partnerships have further enriched his research efforts, leading to groundbreaking developments that enhance the quality and efficiency of liquid crystal displays.
Conclusion
Tsutomu Yamada's extensive patent portfolio and his commitment to innovation in liquid crystal technology render him a prominent figure in the electronics industry. His latest inventions exemplify the potential of liquid crystals in developing high-quality display devices, making a lasting impact on the future of visual technology.
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.