Company Filing History:
10 out of 1,111 
2 out of 1,306 
Years Active: 2008-2025
Title: Hiroki Tsujikawa: Innovator in Chemical Liquid Preparation Technology
Introduction
Hiroki Tsujikawa is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of chemical liquid preparation, holding a total of 12 patents. His work focuses on developing advanced devices and methods that enhance the efficiency and effectiveness of chemical processes.
Latest Patents
Tsujikawa's latest patents include a chemical liquid preparation device and a substrate processing device. The chemical liquid preparation method involves preparing a TMAH-containing chemical liquid through a series of steps. These steps include establishing a correspondence relationship between the supply flow rate ratio of an oxygen-containing gas and an inert-gas-containing gas, and the resulting dissolved oxygen concentration in the chemical liquid. Additionally, the method sets a target dissolved oxygen concentration and acquires the necessary supply flow rate ratio to achieve this target. The substrate processing device focuses on preparing a chemical liquid for treating films formed on substrates, utilizing a gas dissolving process to adjust the dissolved oxygen concentration by controlling the mixing ratio of the gases supplied.
Career Highlights
Throughout his career, Hiroki Tsujikawa has worked with notable companies such as Screen Holdings Co., Ltd. and Dainippon Screen Mfg. Co., Ltd. His experience in these organizations has allowed him to refine his expertise in chemical liquid preparation technologies and contribute to innovative solutions in the industry.
Collaborations
Tsujikawa has collaborated with esteemed colleagues, including Atsuyasu Miura and Kazuhiro Fujita. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in their respective fields.
Conclusion
Hiroki Tsujikawa's contributions to chemical liquid preparation technology demonstrate his commitment to innovation and excellence. His patents and career achievements reflect his significant impact on the industry, making him a noteworthy figure in the realm of inventions.
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.