• Takuo Toyama

    Certified Public Accountant / Certified Public Tax Accountant

    Graduated from the Faculty of Economics, Yokohama National University in 1983. Worked at Ota Showa Audit Corporation (currently EY Ernst & Young ShinNihon LLC) for eight years. Appointed as Representative Partner of Toko Audit Corporation in 1998. Established Shinei Tax Corporation in 2011 and assumed the position of Representative Partner. Served as an Examination Committee Member for the Certified Public Tax Accountant Examination from FY2018 to FY2020. Served as the Director of the Business Affairs Department for the Kojimachi Branch of the Tokyo Certified Public Tax Accountants’ Association.
    I provide meticulous and wide-ranging support for companies at all stages, from small and medium-sized enterprises at the time of their establishment to publicly listed corporations.
    Hobbies: Kendo (Kyoshi 7th Dan) and Golf. Originally from Miyazaki Prefecture.

  • Minoru Kainuma

    Certified Public Tax Accountant

    Graduated from the Faculty of Commerce, Senshu University in 1984. Registered as a Certified Public Tax Accountant in 1989. Currently serves as the Vice Branch Chief of the Koishikawa Branch of the Tokyo Certified Public Tax Accountants’ Association, and as a Committee Member of the International Division of the Japan Society of Tax Accounting.

    Principal Publications

    “Essential Tax Knowledge Protecting Your Assets” (Published by Chuokeizai-sha)
    “Corporate Legal and Tax Affairs for Family-Owned Companies” (Co-author, Published by Dai-Ichi Hoki)
    “Ask Your Advisory Accountant! Q&A on International Taxation for Individuals” (Co-author, Published by Chuokeizai-sha)

  • Koichiro Ishiwatari

    Patent Attorney

    OneMile Trademark & Intellectual Property Office

    Originally from Kanagawa Prefecture. After graduating from the Faculty of Law, Department of Law at Hosei University, he worked at a music CD distribution company and an entertainment agency before qualifying as a Patent Attorney. Leveraging his professional background in the entertainment industry, he actively handles intellectual property matters, including trademarks, copyrights, and publicity rights.

  • Kyohei Kuno

    Patent Attorney

    OneMile Trademark & Intellectual Property Office

    Born in 1986. Representative Patent Attorney of OneMile Trademark & Intellectual Property Office.
    After accumulating deep knowledge and experience handling approximately 10,000 cases during a five-year tenure at Japan’s top-ranking firm for trademark registration applications, he established his independent practice. As a Patent Attorney specializing exclusively in trademarks—a rare distinction nationwide—he is dedicated to helping clients protect their invaluable brands.
    He currently resides in his favored location of Okinawa and operates from the firm’s Okinawa office.

  • Tomoko Arai

    Labor and Social Security Attorney

    Graduated from the Department of Psychology, Faculty of Letters at Gakushuin University, and subsequently joined a foreign-affiliated life insurance company.
    Following professional experience at a life and non-life insurance agency and a Labor and Social Security Attorney office, she registered and established her independent practice.
    She is committed to providing optimal support by consistently putting herself in her clients’ shoes.

  • Atsuko Oshiro

    Specific Labor and Social Security Attorney

    Representative Partner, Labor and Social Security Attorney Corporation Assist 21
    Graduated from the Department of Home Economics, Hokusei Gakuen Women’s Junior College. After working for an airline passenger service company and an apparel manufacturer, she established her practice in 2003.
    Operating as a “trusted family specialist for human resources and labor relations,” she strives to provide swift and meticulous services.

    ■ Lectures & Seminars
    Organizer & Lecturer: “Independent Practice and Startup Seminar for Labor and Social Security Attorneys,” sponsored by Nippon Horei
    Lecturer: “Master Course on Core Administrative Procedures,” sponsored by Nippon Horei
    Lecturer: “Practical Independent Practice Startup Seminar for Women Labor and Social Security Attorneys,” sponsored by Nippon Horei
    Lecturer: “Labor Management Seminar,” sponsored by an attendance management system vendor
    Lecturer: “Amended Labor Standards Act,” sponsored by the Labor Insurance Administrative Association
    Lecturer: “Tokyo Employment Challenge Support Vocational Training (Payroll Calculation)”
    ■ Principal Publications
    Supervisor: “The Guidebook for Handling Payroll, Taxes, and Social Insurance Administrative Work for Small Companies” (Kanki Publishing)
    Co-author: “Illustrated: Complete Manual for Forms and Procedures of Labor and Social Insurance” (Nippon Horei)
    Co-author: “Complete Package of Business Forms for Labor and Social Security Attorneys” (Nippon Horei)
    Author & Supervisor: “Complete Manual for Forms and Procedures of Labor and Social Insurance” (Nippon Horei)
    Co-author: “Business Guide Special Edition: SR (Specialized Magazine for Practicing Labor and Social Security Attorneys)” (Nippon Horei)
    Author: “Business Guide” (Nippon Horei)
    Co-author: “Complete Book of HR and Labor Business Forms” (Nippon Horei)

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