Denso had 15 patents in advanced materials during Q4 2023. Denso Corp filed patents for a piezoelectric film laminated body with a scandium-containing aluminum nitride film, an ultrasonic sensor for vehicles with a shield section and electric circuit section, a piezoelectric element with a support and vibration unit, a piezoelectric element with multiple vibration regions for pressure and acceleration detection, and a sensing section with a protective film for measuring mediums. GlobalData’s report on Denso gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Denso grant share with advanced materials as a theme is 13% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Piezoelectric film laminated body and manufacturing method of the same (Patent ID: US20230413675A1)
The patent filed by Denso Corp describes a piezoelectric film laminated body consisting of a base member with a base surface and a scandium-containing aluminum nitride film in contact with the base surface. The base surface must have a surface roughness of 0.5 nm or less in arithmetic average roughness. The base member can be made of various materials, including amorphous insulating materials or insulating materials with specific crystal structures and orientations.
The patent also includes claims related to the composition and structure of the base member, the addition of a conductive member, and manufacturing methods for the piezoelectric film laminated body. These claims specify the materials, crystal structures, and orientations allowed for the base member, as well as the surface roughness requirements for both the base member and the conductive member. The manufacturing methods involve planarizing surfaces to achieve the required surface roughness before forming the scandium-containing aluminum nitride film. Overall, the patent focuses on the specific composition, structure, and manufacturing processes necessary for the efficient functioning of the piezoelectric film laminated body.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
