Icyayi cyo mu Icupa Tamausagi ni icyayi cy'Ubuyapani cyapakiwe mu icupa gitegurwa hakoreshejwe Uji Gyokuro, icyayi gikorwa hakurikijwe uburyo gakondo bwa Uji bw'i Kyoto. Icupa rifite ishusho yoroheje yahumekewe na wabi-sabi, ubuhanzi bw'Ubuyapani bushingiye ku buryohereye bw'ibintu byoroheje. Ikimenyetso cyaryo ni urukwavu rwayoboye imana irinda Uji. Icupa rigaragaza ijoro ry'ukwezi rifite ibicu byoroheje, bikaba bishushanya uburyo bwa Gyokuro bwo gukingira amababi y'icyayi izuba. Ryashyizweho imitako y'izahabu ifite uburyo bukakaye ku ruhu no kubengerana gucishirije. Icupa ry'umukara rikumira urumuri kandi rikarinda icyayi. Idirishya ry'uruziga ku isanduku rigaragaza ikimenyetso cy'urukwavu.
Izina ry'umushinga : Tamausagi, Izina ryabashushanya : Hisamichi Kasai, Izina ry'abakiriya : Shunbin inc..
Igishushanyo gitangaje nuwatsindiye igihembo cya feza mu marushanwa yo kwerekana imideli, imyambaro n'imyenda. Ugomba rwose kubona ibihembo bya silver byegukana ibishushanyo mbonera bya portfolio kugirango umenye ubundi buryo bushya, bushya, umwimerere kandi uhanga, imyambarire n'imyenda.
