Hiroki Morikoshi

Title: The Innovative Contributions of Hiroki Morikoshi

Introduction: Hiroki Morikoshi, based in Tokyo, Japan, is a prominent inventor known for his advancements in the field of surface acoustic wave devices. With a remarkable portfolio consisting of six patents, Morikoshi has made significant contributions to the technology sector, particularly through his innovative work on piezoelectric substrates.

Latest Patents: Morikoshi’s latest patents include the development of a surface acoustic wave device and a piezoelectric substrate used therefor. His invention outlines a surface acoustic wave device that comprises a piezoelectric substrate along with a pair of interdigitated electrodes situated on one main surface of the substrate. The piezoelectric substrate is composed of a single crystal that belongs to a point group featuring a crystal structure of CaGaGeO type. This substrate contains calcium (Ca), niobium (Nb), gallium (Ga), silicon (Si), and oxygen (O) as its main components and is represented by the chemical formula CaNbGaSiO. The invention allows for the selection of the cut angle of the substrate and the propagation direction, ultimately leading to a substrate with a large electromechanical coupling coefficient. This advancement is noteworthy as it enables a wider passband and a lower surface acoustic wave (SAW) velocity, which is crucial for miniaturizing surface acoustic wave devices.

Career Highlights: Throughout his career, Hiroki Morikoshi has been associated with TDK Corporation, which has played a significant role in his professional development. His expertise in acoustics and piezoelectric materials has been instrumental in pushing the boundaries of technology in various applications.

Collaborations: In his journey as an inventor, Morikoshi has collaborated with notable professionals including Kenji Inoue and Katsuo Sato. These collaborations have enhanced his research endeavors and contributed to the successful development of his patented technologies.

Conclusion: Hiroki Morikoshi stands out as an influential inventor in the realm of surface acoustic wave devices and piezoelectric substrates. His innovative patents not only showcase his technical brilliance but also his dedication to advancing the field. The impact of his work can be seen in the continued evolution of acoustic devices, showcasing the importance of innovation in technology.