Company Filing History:
2 out of 1,600 
1 out of 3,252 
1 out of 19,697 
Years Active: 1997-1999
Title: Hisayoshi Ohta: Innovator in Gas Detection Technology
Introduction
Hisayoshi Ohta is a notable inventor based in Okazaki, Japan. He has made significant contributions to the field of gas detection technology, holding 2 patents that showcase his innovative approach to measuring gas concentrations.
Latest Patents
One of Hisayoshi Ohta's latest patents is a solid electrolyte gas concentration detector. This device utilizes solid electrolyte layers to measure the concentration of gas constituents in various measuring gases, such as exhaust from internal combustion engines. The design ensures that the measurement is not influenced by the oxygen concentration in the measuring gas. The detector introduces the measuring gas into an inner cavity while outside air serves as a reference gas. An oxygen pumping cell, made from an ion conductive solid electrolyte layer and electrodes, maintains the oxygen concentration at a predetermined level. The concentration of gas constituents is determined by measuring the ion current generated in a detector cell, which is also constructed from an ion conductive solid electrolyte layer.
Another significant patent is an air-fuel ratio detecting device. This invention comprises an oxygen pump portion and an oxygen sensor portion integrated onto a single solid electrolyte sheet. The design simplifies the structure compared to conventional air-fuel ratio detecting elements, which typically require separate solid electrolyte sheets for each component. The oxygen pump portion includes electrodes and a communication hole, while the oxygen sensor portion is formed on the same side of the solid electrolyte sheet.
Career Highlights
Hisayoshi Ohta has worked with reputable companies such as Nippon Soken, Inc. and Nippondenso Co., Ltd. His experience in these organizations has contributed to his expertise in gas detection technologies.
Collaborations
Throughout his career, Ohta has collaborated with talented individuals, including Daisuke Makino and Keigo Mizutani. These partnerships have likely fostered innovation and development in his projects.
Conclusion
Hisayoshi Ohta's contributions to gas detection technology through his patents reflect his innovative spirit and dedication to improving measurement techniques. His work continues to influence the field and showcases the importance of advancements in technology.
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.