Introduction: Hiroshi Yajima, a talented inventor based in Hamura, Japan, has made significant strides in the field of printing technology. With a remarkable portfolio consisting of six patents, Yajima's work focuses on innovating printing apparatuses and hand-held copiers that enhance efficiency and usability.

Latest Patents: One of Yajima's latest inventions is a printing apparatus designed to operate with a lighter weight than the force exerted during printing. This apparatus utilizes a thermal head coupled with a piezoelectric actuator, which performs movements of expansion and contraction synchronized with alternating voltage. This unique feature allows the apparatus to function effectively without applying any external pressure during the printing process. The design ensures that the average force exerted by the thermal head against the recording paper does not exceed the weight of the printing apparatus, while still delivering the necessary force to thermally transfer ink onto the paper.

Another notable invention is the hand-held manually sweeping copier. This device allows users to manually sweep it over a medium to capture image data through an image sensor, such as a CCD type. The copier processes and arranges the obtained image data in the order of the sweeping motion and prints it onto a suitable medium, such as plain paper, enhancing user interactivity and convenience.

Career Highlights: Hiroshi Yajima's impressive career has been anchored at Casio Computer Co., Ltd., where he has contributed to the advancement of printing technologies. His innovative designs have not only improved printing devices but also redefined user experiences in casual printing tasks.

Collaborations: Throughout his career, Yajima has worked alongside talented colleagues such as Masaki Hayashi and Takashi Satoh. Their collaborative efforts have fostered a productive environment that drives creativity and innovation within the company.

Conclusion: Hiroshi Yajima's contributions to printing technology exemplify the power of innovation and ingenuity. His patents continue to influence the industry, showcasing the importance of exploring new avenues in technology for enhanced productivity and user experience. As a dedicated inventor, Yajima stands as an inspiring figure in the realm of inventions.

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