This inventor holds 1 USPTO granted patent. Top assignee: Hitachi Construction Machinery Co., Ltd.. Active years: 1992.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1992
Title: Tatuo Ishikawa and Ultrasonic Evaluation of Ceramic Joints.
Introduction
Tatuo Ishikawa is an inventor associated with Sapporo, Japan, and Hitachi Construction Machinery Co., Ltd. His listed patent concerns a method for determining the strength of a joint between ceramic and non-ceramic materials.
Latest Patents
Ishikawa is credited with 1 patent: “Method for the Determination of Strength of Join Between Ceramic and [Associated Non-Ceramic].” The method uses an ultrasonic microscope to assess the joint. A focused ultrasonic beam is directed at a point on the ceramic surface a predetermined distance from the joint. The system records interference-wave intensities as the distance between the microscope probe and the ceramic is varied. It then calculates residual stress from the cycle of echo intensities and uses that stress to determine the joint’s strength.
Career Highlights
The patent reflects work on evaluating the integrity of ceramic-to-non-ceramic joints through ultrasonic measurement and residual-stress analysis. Ishikawa’s listed company affiliation is Hitachi Construction Machinery Co., Ltd.
Collaborations
Isao Ishikawa and Toshio Narita are identified as Ishikawa’s coworkers. The available information does not specify their individual roles in the patent.
Conclusion
Tatuo Ishikawa’s recorded invention applies ultrasonic microscopy and residual-stress analysis to determine the strength of joints between ceramic and non-ceramic materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile