Staff Journal

The other day, a female couple came to our store together. We have had female couples who have come to our store alone and had their engagement rings made for their partners, but this was the first time we had had two customers come to our store together and both have engagement rings made, so we were very excited to see...

Fujimori Corporation, the owner of MITUBACI, is a jewelry manufacturer established in 1970 and located in Sangenjaya, Tokyo. We are a small company, but we are a team of designers, craftsmen, workshop assistants, and advisors who help our customers to choose jewelry....

Thanks to your support, on January 11, 2023, MITUBACI celebrates its 12th anniversary. We hope you will continue to support us as we continue to increase our power! We are also preparing campaigns and events to celebrate our 12th anniversary, so please look forward to them...

Bismuth ore with attractive geometric patterns Hello, I am Yanagizumi, a craftsman. I like gems and ores, and often visit jewelry stores and mineral shows to collect stones that I like. This time, I tried to make "bismuth ore," which is said to be an ore that you can make by yourself, in my workshop! Crystals from actual bismuth ore...

The birthstone for November is citrine I would like to talk about citrine. Citrine is the birthstone for November, the same as topaz. Its Mohs hardness is 7, and it is relatively easy to pick up even for those who do not usually touch jewelry because of its good coloring and durability...

Hello, my name is Sakuta, a MITUBACI staff member. One of the workshops that I would like to do someday at MITUBACI is called "Jewelry Experience for Children. Today, I would like to introduce part of that concept. MITUBACI will have been in business for 10 years in January 2021...

Hello, my name is Shindo, a craftsman. Since I talked about precious metals in the last issue, I would like to talk about the most familiar metal in our daily lives, coins. ＜It is a well-known fact that a one yen coin weighs 1g, but other coins weigh different amounts and are made of different materials....

Hello, this is Fujimori, a craftsman from MITUBACI. This time, we would like to introduce our workbench and tools used for brazing, annealing, and other fire-working processes. Brazing is the process of filling the gaps between metals (gold, silver, etc.) to be joined with a metal (gold solder) that is mixed to melt at a temperature lower than the melting point of the metals to be joined.