Location History:
- Matsubara, JP (1995 - 2009)
- Osaka, JP (2009 - 2022)
Company Filing History:
18 out of 16,453 
11 out of 13,247 
10 out of 27,375 
Years Active: 1995-2025
Title: Innovations of Katsu Yamada in Projection Lens Technology
Introduction: Katsu Yamada is a prominent inventor based in Osaka, Japan, known for his significant contributions to optical technology. With an impressive portfolio of 35 patents, Yamada's work has had a considerable impact in the field of image projection systems, enhancing both functionality and efficiency.
Latest Patents: Among his latest inventions are two advanced projection lens systems integral to image projection devices. The first patent describes a projection lens system designed to project an image from a reduction side to a magnification side. This system incorporates a back glass positioned on the reduction side. It ensures that all negative lenses meet specific conditions regarding their transmittance and thickness, promoting overall image clarity and quality.
The second patent further expands upon projection technology by integrating multiple positive and negative lenses, along with a diaphragm. This complex assembly enhances the projection capabilities, allowing for a refined optical path that achieves high transmittance across all lenses. By meticulously arranging these lenses, Yamada's invention facilitates improved image projection that meets stringent optical requirements.
Career Highlights: Yamada's career spans several esteemed companies, including Panasonic Corporation and Matsushita Electric Industrial Co., Ltd. His work at these organizations has positioned him as a pivotal player in the development of cutting-edge projection technologies. His expertise and innovative spirit have led to advancements that are well-documented through his numerous patents.
Collaborations: Throughout his professional journey, Katsu Yamada has collaborated with esteemed colleagues, such as Keiki Yoshitsugu and Takuya Imaoka. These collaborations have fostered an environment of shared creativity and have led to groundbreaking innovations in projection lens technology.
Conclusion: Katsu Yamada's innovative contributions to the field of optical engineering, particularly in projection lens systems, underscore his status as a leading inventor in Japan. His 35 patents reflect a profound commitment to improving image technology, and his collaborative efforts continue to inspire advancements in the industry. As projection systems evolve, Yamada’s influence and inventions will undoubtedly play a critical role in shaping their future.
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.