Patents by Inventor Shuichi SHINKAWA

Shuichi SHINKAWA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220192083
    Abstract: A nutrient amount determination device acquires number-of-users information indicating a number of users who use a sports facility within a predetermined period, the sports facility having lawn on which a sport is played. The nutrient amount determination device determines based on the acquired number-of-users information an application amount of at least one nutrient to be applied to the lawn of the sports facility by fertilization within the predetermined period.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 23, 2022
    Applicant: Rakuten Group, Inc.
    Inventors: Masahiro KUWAHARA, Takahiro IIZUKA, Hirofumi KOKUBUN, Shuichi SHINKAWA