Ajisen Ramen originated from Kumamoto of Kyushu, Japan in 1968. The famous chewy, straight and thin ramen coupled with the secret recipe of our tonkotsu soup base has been widely commended in Japan, and has been introduced to the rest of the world since 1995. Today, Ajisen Ramen totals over 600 branches all over the world.


“Tontotsu” is a broth derived from the essence of pork. It takes hours to be emulsified. So, it tastes very rich and deep, and free of the usual pork smell. Our flagship ramen is ”Paiku Ramen” (Premium Tender Ribs Ramen.)

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Ajisen San Mateo

211 East 3rd Ave.

San Mateo, CA 94401

Ph. 650-344-8887

Business Hour:

Lunch Mon - Sun: 11:30 am - 3:30 pm
Dinner Mon - Sun: 5:30 pm - 9:00 pm
Fri & Sat: 5:30 pm - 11:00 pm

Ajisen Fremont

47890 Warm Springs Blvd.

Fremont, CA 94539

Ph. 510-353-1133

Business Hour:

Lunch 11:30 am - 2:00 pm (Sat - 3:30 pm)

Dinner 5:30 pm - 9:00 pm