| 1979 |
Graduated from NAGOYA MODE GAKUEN. Went to France. After worked for Dan Beranger's atelier, joined Bureau de style "Marion Gulbert", in charge of editing the fashion trend and planning the collection. |
| 1985 |
| Belong to Syndicat Nationale Styliste Industrial. Started to work as a freelance designer. |
| 1986 |
| Won a prize Mizuno Sports Grand Prix. Won a prize Onward Fashion Grand Prix. |
| 1987 |
Resigned Marion Gulbert. Established A. T. H. Fashion Service. Hasegawa is developing men's wear; women's wear and sports wear widely in Paris. |
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| 1985 |
Graduated from INSTITUTE ARTISTICO DELL'ABBIGLIAMENTO MARANGONI. After worked for RINASCENTE department as an assistant buyer, worked for design studio "Tini Bagattini" as a designer, designed SISLEY, ICEBERG, MARINA RINALDI, and I BLUES. |
| 1990 |
| Worked for LES TULIPES and planning women's collection. |
| 1991 |
| Published the original collection VOGHENZIA. |
| 1995 |
| Worked for design studio REALITY and planning BASILE28, women's wear. |
| 1998 |
| Published the original brand NON SOLO NERO by ANTONELLA MARANI. |
| 1999 |
Open the direct management store near FIERA, the place for MILAN COLLECTION. Established MARANI & MARANI with her brother MARIZIO MARANI who is an art director. |
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| 1982 |
| Graduated from OSAKA MODE GAKUEN design department. |
| 1982 |
| Worked for Comme des Garcons (Tokyo) as a pattern maker. |
| 1984 |
| Went to France. Worked for Etienne Brunel (Paris) as a designer and a pattern maker. |
| 1988 |
| Worked for Enrico Coveri (Frenze) as a designer. |
| 1992 |
| Started to work as a freelance designer. |
| 1993 |
| Worked for Blance Manteaux (Paris) as a designer and a pattern maker. Open the direct management store at 42 rue des Blancs Manteaux. |
| 1996 |
Exhibit the Blance Manteaux to the SALON DU PRET A PORTER (Paris). Open the direct management store at Forum des Halles Niveau-1. The garments of Blance Manteaux were inserted in ID, Madam FIGARO and the ELLE journal recently, also, it is sold at STOCKMAN, SHIPS, SPICK AND SPAN in Japan. Draw the attention of the outside and in the country. |
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