| 2011 |
Reorganized to LLP and moved to Osaka Chuo-ku |
| 2011 |
Toshiyuki Maruyama, elected to a supervisor of the JAPAN Patent Attorneys Association |
| 2010 |
Merged Nishioka & Co. |
| 2001 |
Toshiyuki Maruyama, honored with Yellow Ribbon medal |
| 1991 |
New building erected |
| 1983 |
Celebrated the 50th anniversary of the office |
| 1979 |
Toshiyuki Maruyama, taken the president of the office |
| 1979 |
Kimizo Maruyama, honored with Purple Ribbon medal |
| 1973 |
Kimizo Maruyama, honored with Fifth Grade Decoration |
| 1972 |
Kimizo Maruyama, elected to a vice-president of JAPAN Patent Attorneys Association |
| 1970 |
Toshiyuki Maruyama studied US patent law at Patent Academy of the US Patent and Trademark Office, learned practice at Armstrong & Cornell (now Kratz, Quintos, & Hanson) in Washington DC. |
| 1964 |
Toshiyuki Maruyama registered at the JAPAN Patent Attorneys Association |
| 1963 |
New building erected |
| 1959 |
Nobuko Maruyama registered at the JAPAN Patent Attorneys Association |
| 1945 |
Moved to Asahi-ku, Osaka |
| 1933 |
Kimizo Maruyama registered at the JAPAN Patent Attorneys Association and founded the office in Higashinari-ku, Osaka |
