This inventor holds 17 USPTO granted patents, plus 1 CIPO patent. Top assignees: Matsushita Electric Industrial Co., Ltd., Matushita Electric Industrial Co., Ltd.. Active years: 1984-1994.
Location History:
- Neyagawa, JP (1984 - 1988)
- Suita, JP (1986 - 1992)
- Osaka, JP (1988 - 1994)
Company Filing History:
16 out of 27,375 
1 out of 28 Years Active: 1984-1994
Title: Keiichi Yubakami: Innovator in Thermal Dye Transfer Printing
Introduction
Keiichi Yubakami is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of thermal dye transfer printing, holding a total of 17 patents. His innovative approaches have enhanced the efficiency and quality of printing technologies.
Latest Patents
Yubakami's latest patents include a method for thermal dye transfer printing and dye transfer sheets. His thermal dye transfer printing systems are designed for multiple-use printing modes, allowing a single dye transfer sheet to be reused repeatedly. This system features a dye transfer layer containing a sublimable dye and a binder resin, along with a dye receiving sheet that has a diffusion rate smaller than that of the dye transfer layer. This design effectively suppresses the reduction in printing density that occurs with increased printing cycles. Additionally, his dye transfer sheet is structured with multiple sub-layers, where the dye concentration decreases from the substrate to the surface, ensuring full-color printing even after numerous uses. Another notable patent involves dye-receiving sheets for dye transfer type thermal printing, which improve curing speed, image reliability, recording sensitivity, and dot reproducibility.
Career Highlights
Throughout his career, Keiichi Yubakami has worked with notable companies, including Matsushita Electric Industrial Co., Ltd. and Matsushita Electric Industrial Co., Ltd. His work has significantly impacted the development of printing technologies, making him a key figure in the industry.
Collaborations
Yubakami has collaborated with several professionals in his field, including Hiromu Matsuda and Akihiro Imai. These collaborations have contributed to the advancement of his innovative projects and patents.
Conclusion
Keiichi Yubakami's contributions to thermal dye transfer printing have established him as a leading inventor in this technology. His patents reflect a commitment to improving printing efficiency and quality, making a lasting impact on the industry.