This inventor holds 3 USPTO granted patents. Top assignees: Sharp Kabushiki Kaisha Corporation, Sugai Chemical Ind. Co., Ltd.. Active years: 1989-1998.
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 25,949 
1 out of 4 Years Active: 1989-1998
Title: Innovations of Toshio Takehara
Introduction
Toshio Takehara is a notable inventor based in Nabari, Japan. He has made significant contributions to the field of printing technology, holding three patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of his latest patents is a method of gradation control and picture quality improvement in color thermal transfer printers. This method allows for the expression of one pixel by a dot matrix with two rows and two columns. It controls the density value of one dot by adjusting the time for energizing a heating element of a thermal head. The method also includes mask patterning to plot only one of four dots when the gradation of each color for one pixel is below a prescribed value. When the gradation exceeds this value, it plots two of the four dots. The mask pattern ensures that cyan and magenta are plotted on different dots. Another patent involves a cleaning sheet for a paper feeding device. This cleaning sheet is designed to be easy to handle and effective in cleaning a picker roller. It is coated with a cleaning adhesive and placed in a paper feeding cassette. The picker roller rotates and cleans itself with the sheet, which has a certain stiffness to remain engaged with the cassette's claw. The sheet is composed of a base sheet with a cleaning adhesive and a releasable cover sheet, allowing for multiple uses.
Career Highlights
Toshio Takehara has worked with prominent companies such as Sharp Corporation and Sugai Chemical Industry Co., Ltd. His experience in these organizations has contributed to his development as an inventor and innovator in the printing technology sector.
Collaborations
He has collaborated with notable coworkers, including Yoshiyuki Nakai and Yasushi Adachi. Their combined expertise has likely fostered a creative environment that encourages innovation.
Conclusion
Toshio Takehara's contributions to printing technology through his patents demonstrate his commitment to innovation and improvement in the industry. His work continues to influence the field and inspire future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile