Location History:
- Obu, JP (1988 - 1989)
- Oobu, JP (1990 - 1991)
- Yokonemachi, JP (1988 - 1992)
- Aichi, JP (1989 - 1992)
- Ohbu, JP (1992 - 1998)
Company Filing History:
17 out of 124 
1 out of 310 
1 out of 1 Years Active: 1988-1998
Title: Sadao Unuma: Innovator in Paper Feeding Technology
Introduction
Sadao Unuma is a notable inventor based in Aichi, Japan, recognized for his contributions to paper feeding technology. With a total of 17 patents to his name, Unuma has made significant advancements in the design and functionality of sheet feed tractors.
Latest Patents
One of his latest patents involves a sheet feed tractor that features a second frame arranged at a predetermined position relative to a drive sprocket. This design incorporates a transferring belt supported by a belt guide, ensuring that the belt maintains suitable tension while allowing for variations in the inter shaft distance. This innovation enhances the accuracy of paper feed operations and improves the reliability of the sheet feed tractor. Another patent focuses on a paper feeding tractor that utilizes a pin carrying feed belt, which reduces sliding resistance between the sprocket and the drive shaft, allowing for efficient paper movement with minimal force.
Career Highlights
Throughout his career, Sadao Unuma has worked with prominent companies such as Tokai Kogyo Kabushiki Kaisha and Bando Chemical Industries, Inc. His experience in these organizations has contributed to his expertise in developing innovative solutions for paper feeding mechanisms.
Collaborations
Unuma has collaborated with notable coworkers, including Masashi Yamashita and Koichi Hara, who have also contributed to advancements in the field of paper feeding technology.
Conclusion
Sadao Unuma's innovative work in paper feeding technology has led to significant improvements in the efficiency and reliability of sheet feed tractors. His patents reflect a deep understanding of mechanical design and functionality, making him a key figure in this industry.
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.