| Dec,1973 | "Kudo Chikara Totikaokuchosashi Jimusho" established (Chikara Kudo Licencsed Land Surveyor Office) |
| Apr,1974 | "Narita Minoru Shihoushoshi Jimusho" established (Minoru Narita Solicitor for Judiciary Office) |
| Jan,1976 | "Sokuryo Toki Jimusho" established (Land Survey ・ Register Office) |
| Jan,1978 | "Sokuryo Toki Godo Jimusho" (altered name) (Land Survey Register Incorporate Office) |
| Jan,1981 | Mr.Katsunori Yamanouchi (Licensed Land Surveyor) entered |
| Apr,1990 | "Godo Jimusho"(altered name) (Incorporate Office) |
| Apr,1990 | Mr. Akira Keta (Solicitor for Administration) entered |
| Sep,1994 | Mr. Hideyuki Nishizawa (Solicitor for Judiciary) entered |
| Apr,1997 | Mr. Kazumi Osawa (Lawyer) entered |
| Apr,1998 | Mr. Akira Genshin (Lawyer) entered |
| Apr,1998 | "Taiyo Godo Jimusho" (altered name) (Taiyo Incorporate Office) |
| Nov,1998 | Mr. Koetsu Nakamichi (Licensed Tax Accountant) entered |
| Oct,2000 | "Taiyo Sogo Horitsu Keizai Jimusho"(altered name) (Taiyo Multipractice Legal and Economic Firm) |
| Oct,2000 | Mr. Akira Genshin (Patent Attorney) registered |
| Apr,2001 | Mr. Tomoki Konno (Solicitor for Judiciary) entered |
| Nov,2001 | Mr. Daisuke Kudo (Licensed Land Surveyor) registered |
| Nov,2002 | Mr. Tomoki Konno (Solicitor for Administration) registered |
| Dec,2002 | Mr.Daisuke Seino(Certified Social Insurance Labour Consultant) entered |
| Jan,2004 | Mr. Kazutaka Ishibashi (Certified Social Insurance Labour Consultant) registered |
| Jun,2006 | Mr.Yuichirou Ueno(Solicitor for Judiciary) registered |
| Sept,2006 | Mr.Syuichi Iida(Solicitor for Judiciary) registered |
| Nov,2007 | Mr. Makoto Yamanouchi (Licensed Land Surveyor) registered |
| Sept,2008 | Mr. Hideaki Konishi (Lawyer) entered |
| Dec,2008 | Mr. Tomoyasu Takeda (Lawyer) entered |
| Dec,2008 | Mr. Kentaro Igawa (Lawyer) entered |