Toto Momo Trade Mark Professionals

Toto Momo Trade Mark Professionals
a pure IP firm specializing
in “trademarks”.

about us

Our history commenced on March 2012 when
Mr. Sei Saito opened the firm in Osaka, Japan.

We focus on trademarks in the areas of search,
prosecution and enforcement,
and have a good
of trademark attorneys all over the world.

We are committed to working
closely with our clients,
looking to their success in ten years,
or even a hundred years.

Our firm name, Toto Momo,
embodies that philosophy.
That is, “Toto” and “Momo” are the
first four letters
of each
Japanese word: TOTOSE and MOMOTOSE, respectively.

TOTOSE means ten years,
and MOMOTOSE a century – both
of which signify specific anniversary milestones.

We have chosen this name,
expressing our commitment
fostering strong relationships with our clients,
while maintaining a long-term vision.

firm profile

Toto Momo Trade Mark Professionals
March 12, 2012
East Chiyoda Bldg., 6F, 2-9-4 Higashi Tenma, Kita-ku,Osaka 530-0044 Japan
  • March 12, 2012Establishment of SEI SAITO Trademark and Patent Firm
  • January 1, 2020Renamed to SEI SAITO Trade Mark Professionals
  • September 1, 2023Incorporated under the name Toto Momo Trade Mark Professionals
contact info.
  • TEL: +81-6-6881-0871
  • FAX: +81-6-6881-0872
  • MAIL:
Sei SAITO, Japanese Patent & Trademark Attorney


JR Tozai Line
1-minute walk from JR Osaka Temmangu Station Exit 9
Osaka Subway Line
1-minute walk from Minami Morimachi
Station Exit 9


  • Sei Saito

    Trademark, Copyright, Branding

    Sei Saito

  • Yayoi Tokunaga

    Trademark, Industrial Design

    Yayoi Tokunaga

  • Kyoko Hattori

    Trademark, Unfair Competition

    Kyoko Hattori

  • Misa Shimizu

    Trademark, IP Valuation, Branding

    Misa Shimizu

about osaka

Osaka is superior to anywhere else in the world since it has the Best Mixture of Tradition and Innovation.

People in Osaka are open-hearted, friendly, and humorous.
The firm is located in the center of Osaka, close to Osaka Castle built by Hideyoshi Toyotomi, one of the greatest Japanese samurai worriers, who ruled Japan in the late 16th century.

Osaka is historically the commercial capital of Japan (merchants’ city), traditionally considered as the “nation’s kitchen” or the gourmet food capital of Japan.

about osaka