Location History:
- Kitaibaraki, JP (2000 - 2003)
- Hitachi, JP (1994 - 2011)
- Ibaraki, JP (2009 - 2011)
- Minoo, JP (2011)
- Osaka, JP (2011 - 2013)
Company Filing History:
8 out of 28,544 
6 out of 42,485 
1 out of 1 
Years Active: 1994-2013
Title: Katsumi Kumada: Innovator in Image Forming Technology
Introduction
Katsumi Kumada is a prominent inventor based in Osaka, Japan, known for his significant contributions to the field of image forming technology. With a total of 15 patents to his name, Kumada has developed innovative solutions that enhance the efficiency and functionality of imaging devices.
Latest Patents
Among his latest patents are the "Swing-gear mechanism" and the "Image forming apparatus having multiple speed modes." The image forming apparatus features a high-speed mode and a low-speed mode, incorporating a speed switch unit that allows for the selection of either mode by switching the rotation direction of a drive source. This unit includes a drive gear attached to the rotating shaft of the drive source, a first drive gear series that transmits rotating power in one direction, and a second drive gear series with a larger reduction ratio that transmits power in the opposite direction. The design enables the drive gear to be selectively connected to either gear series based on the rotation direction of the drive source. Additionally, his patent for a fixing device and electro photographic apparatus includes a heating roller with mold releasing properties, a pressure belt, and a swingable belt regulating member that ensures optimal performance.
Career Highlights
Kumada has had a distinguished career, working with notable companies such as Ricoh Company, Ltd. and Hitachi, Ltd. His work in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in imaging technology.
Collaborations
Throughout his career, Kumada has collaborated with talented individuals, including Chikara Hiraoka and Kazuhiro Wakamatsu. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Katsumi Kumada's contributions to the field of image forming technology are noteworthy, with his innovative patents and collaborations highlighting his expertise. His work continues to influence the industry, showcasing the importance of creativity and innovation in technological advancement.
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.