This inventor holds 3 USPTO granted patents. Top assignees: Kabushiki Kaisha Suwa Seikosha, Matsushima Kogyo Kabushiki Kaisha, Matsushima Kogo Kabushiki Kaisha. Active years: 1981-1983.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 446 
2 out of 6 
1 out of 1 Years Active: 1981-1983
Title: The Innovations of Yukio Hara
Introduction
Yukio Hara is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of quartz crystal oscillators, holding a total of 3 patents. His work has had a lasting impact on the technology used in various electronic devices.
Latest Patents
One of Hara's latest patents is a quartz crystal oscillator that includes a quartz crystal plate defining a tuning fork. This oscillator features a base, two vibratory tines extending from the base, and a frame that integrally surrounds the tines. The quartz crystal plate is positioned between two cooperating case members in the region of the base and frame. Thin metallic electrodes are placed on the opposed planar surfaces of the quartz crystal plate. A through-hole or opening is formed in the base region of the vibrator plate to electrically connect an electrode from one planar surface to the opposed surface, providing two external terminals on one surface case member. The electrical connection through the opening is achieved using a thin metal film deposited by sputtering or deposition.
Another significant patent is a method of making a quartz crystal oscillator package. This package comprises a quartz crystal vibrator leaf enclosed in an evacuated housing. The vibrator leaf frame is sandwiched and sealed between a pair of housing elements, which are formed by etching the periphery of each housing element and creating a concave portion in each. The opposed concave portions provide the internal volume where the vibrator leaf is sealed under vacuum. By using heat and vacuum, a metal film deposited on the sealing surfaces of the housing elements fuses with a binder material to form a eutectic alloy seal. This method results in a flat package that is small in size, has high structural strength, an excellent hermetic seal, and maintains a high internal vacuum.
Career Highlights
Throughout his career, Yukio Hara has worked with several prominent companies, including Kabushiki Kaisha Suwa Seikosha and Matsushima Kogyo Kabushiki Kaisha. His expertise in quartz crystal technology has positioned him as a key figure in the development of advanced electronic components.
Collaborations
Hara has collaborated with notable individuals in his field, including Masatoshi Kobayashi and Hiroyuki Fujii. These collaborations have further enhanced his contributions to the industry.
Conclusion
Yukio Hara
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile