This inventor holds 4 USPTO granted patents. Top assignees: Daicel Chemical Industries, Ltd., Daicell Chemical Industry Co., Ltd.. Active years: 1988-1997.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
3 out of 1,165 
1 out of 1 Years Active: 1988-1997
Title: Masaharu Takegawa: Innovator in Cigarette Filter Technology
Introduction
Masaharu Takegawa is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of cigarette filter technology, holding a total of 4 patents. His innovative designs focus on improving the efficiency and effectiveness of cigarette filters.
Latest Patents
One of Takegawa's latest patents is a filter rod for filtering the smoke of a cigarette. This invention includes an acetate tow with a high crimp modulus, which is bloomed and wrapped in paper to form the filter rod. The degree of crimping of the acetate tow at a position just downstream of a delivery roller is 1.4 or more. This is achieved by conditions that satisfy specific equations related to the weight percent of acetone in the acetate tow. Another significant patent is a cigarette filter-rod manufacturing device. This device aims to provide a low-cost automated weight control system for filter rods, which can be easily integrated into existing manufacturing facilities. It features a tension gauge that measures the tension in the tow during the manufacturing process and a weight control system that maintains the specified tension by adjusting the speed of the pretension rollers.
Career Highlights
Masaharu Takegawa has worked with prominent companies such as Daicel Chemical Industries, Ltd. and Daicell Chemical Industry Co., Ltd. His experience in these organizations has contributed to his expertise in the field of cigarette filter technology.
Collaborations
Throughout his career, Takegawa has collaborated with notable individuals, including Akihisa Matsuda and the late Motoharu Kotani. These collaborations have likely enriched his work and led to further innovations in his field.
Conclusion
Masaharu Takegawa's contributions to cigarette filter technology demonstrate his innovative spirit and dedication to improving product efficiency. His patents reflect a commitment to advancing manufacturing processes and enhancing user experience.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile