Yo-Yo in Chinese / Japanese...

This is the most common character for a Chinese surname that romanizes as “Chen.”

This is also a surname You or Yo in Japanese, though it can also be pronounced as Chin in Japanese.

In Korean, it is a surname romanized as Jin.

As a word, this character means: to lay out; to exhibit; to display; to narrate; to state; to explain; to tell.

The Chen clan or family was a small kingdom from 1046 BC to 479 BC. It was one of 12 small-but-powerful vassal states during the Spring and Autumn Period 770-475 BC. This name reappeared as the Chen Dynasty (陳朝) of the Southern dynasties from 557 AD to 589 AD.

陳 is the Chinese character that was the Vietnamese surname Trần before Vietnam romanized their language.

This can also refer to the Trần Dynasty of Vietnam (1225 to 1400).

This is also the Chinese surname Chen, Chin or Chan, Korean surname Jin, and Japanese Surname Yo or Chin.

燿 means brilliant or glorious in Chinese, Japanese Kanji, and old Korean Hanja.

I am listing this character as it is a common Japanese given name that is romanized as Yoko or Youkou. It can be romanized as these names as well: Yo, Teru, and Akira.

As with most Japanese names, this is not the only character or only name that romanizes as Yoko. Be sure you are getting the correct character before you order.

精力善用 means “maximum efficiency” and is often associated with Judo.

It is often matched with “Jita Kyoei” (mutual benefit) to complete the philosophy of Kodokan Judo.

精力 = sei ryoku = energy, vigor, and/or vitality.

善用 = zen yo = to be good at using (something), or to put (something) to good use.

卡斯蒂尤 is the name Castillo in Chinese (Mandarin).

Even though it's not the most commonly-used transliteration, I like this version of Castillo, as it sounds more like the real Spanish pronunciation where the end of Castillo sounds like “Yo.”

This is a standard form of the name Castillo in Chinese (Mandarin).

I'm not a fan of this version, as it pronounces the “LL” instead of the end sounding more like “Yo” as it does in proper Spanish.