Setsuo Yonezawa

Title: The Innovations of Setsuo Yonezawa

Introduction

Setsuo Yonezawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of printing technology, holding a total of 3 patents. His work has focused on improving the functionality and efficiency of impact type dot printers.

Latest Patents

Yonezawa's latest patents include a method for determining print starting positions for an impact type dot printer. This innovation allows the printing head to start printing dot-matrix characters at aligned print starting positions. A print timing signal is generated in synchronism with the rotation of the platen, which indicates the positions where the print hammer strikes projections on the platen. The printing head is moved from a home position for pre-spacing before normal printing operations. A home signal is generated when the printing head leaves this home position, and the number of pulses of the print timing signal is counted until a first pulse-free blank arrives. This data is crucial for determining print starting positions based on the stored information.

Another significant patent by Yonezawa is an apparatus for forming a character by a matrix pattern of picture elements. This apparatus creates characters such as letters, numerals, and symbols by forming picture elements in a matrix shape. The magnifications of the character can be adjusted, and interpolation is performed to enhance clarity when the character becomes obscure due to enlargement. This technology is particularly useful in printers.

Career Highlights

Throughout his career, Setsuo Yonezawa has worked with prominent companies, including Kabushiki Kaisha Seikosha and Seikosha Co., Ltd. His experience in these organizations has contributed to his expertise in printing technology and innovation.

Collaborations

Yonezawa has collaborated with notable coworkers, including Yoshinori Chida and Tsuneta Kawakami. Their joint efforts have likely played a role in advancing the technologies they worked on together.

Conclusion

Setsuo Yonezawa's contributions to printing technology through his patents demonstrate his innovative spirit and dedication to improving the industry. His work continues to influence the development of printing solutions today.