Company Filing History:
3 out of 58 
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Years Active: 1986-2001
Title: The Innovative Mind of Masayuki Umeno: Advancements in Semiconductor Technology
Introduction: Masayuki Umeno, a prominent inventor based in Chigasaki, Japan, has made significant contributions to the field of semiconductor technology. With a portfolio of four patents, Umeno has been instrumental in developing advanced materials that enhance the functionality and efficiency of semiconductor devices.
Latest Patents: Umeno's latest innovations include a unique semiconductor encapsulating epoxy resin composition designed to improve the manufacturing process of semiconductor devices. This composition features an epoxy resin, a phenolic resin curing agent, a curing catalyst, and an inorganic filler. Notably, the catalyst utilized is a quaternary phosphorus compound that has been mixed and reacted with a phenolic resin containing at least two hydroxyl groups. This result is a resin that is effectively flowable, moldable, and curable, making it ideal for semiconductor encapsulation. Another noteworthy patent by Umeno also encompasses an epoxy resin composition that includes a curing accelerator, specifically an organic phosphorus compound, which enhances the composition's stability, flowability, and mold release properties, thereby minimizing defects during the molding process.
Career Highlights: Throughout his career, Masayuki Umeno has worked with leading companies in the industry. He has contributed his expertise to Hokko Chemical Industry Co., Ltd. and Mitsui Engineering and Shipbuilding Company Limited. These positions have allowed him to advance his research and development capabilities, further solidifying his impact on semiconductor technology.
Collaborations: Umeno has collaborated with notable colleagues in his field, including Kenji Ohashi and Tatsuya Ishizaki. These partnerships have fostered a dynamic exchange of ideas, leading to the development of innovative solutions in semiconductor materials.
Conclusion: Masayuki Umeno’s contributions to the semiconductor industry underscore the essential role of innovative materials in technological advancement. His patents reflect a commitment to improving the performance and reliability of semiconductor devices, marking him as a noteworthy inventor in his field. As the industry continues to evolve, Umeno's work will undoubtedly influence future innovations in semiconductor technology.