Company Filing History:
6 out of 28,544 
1 out of 832,680 Years Active: 1984-1998
Title: Tomoyuki Yamaguchi: Innovator in Ink Jet Technology and Optical Measurement
Introduction
Tomoyuki Yamaguchi is a prominent inventor based in Chiba, Japan. He holds a total of 6 patents that showcase his contributions to the fields of ink jet technology and optical measurement. His innovative work has significantly impacted the way these technologies are utilized in various applications.
Latest Patents
One of Yamaguchi's latest patents is an ink jet head that includes phase transition material actuators. This ink jet printing head features a nozzle plate with nozzles, multiple ink cavities, and actuators made from phase transition materials. The design allows for precise control of ink discharge, enabling high-quality image printing on paper. The actuators respond to electric fields, causing volumetric changes that facilitate the movement of ink.
Another notable patent is an optical movement measuring method and apparatus that utilizes interference. This technology measures the movement of an object by irradiating light onto a diffraction grating. The resulting interference fringes, which consist of alternating bright and dark stripes, are analyzed to determine the object's movement. This method offers a reliable way to measure motion with high accuracy.
Career Highlights
Throughout his career, Tomoyuki Yamaguchi has worked with several notable companies, including Ricoh Company, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in technology.
Collaborations
Yamaguchi has collaborated with talented individuals such as Tadashi Fujii and Kakuji Murakami. These partnerships have fostered innovation and have led to the development of groundbreaking technologies.
Conclusion
Tomoyuki Yamaguchi's contributions to ink jet technology and optical measurement demonstrate his innovative spirit and dedication to advancing these fields. His patents reflect a commitment to improving technology for practical applications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.