How to type corner brackets on OS X? 「 」

I found these… ⎡ ⎦ but the half brackets may be font dependent.

Press Control + Command + Space — this brings up the Emoji/Character viewer. On the left side of the box, there are a list of categories. You should see a category called "Box Drawing." If you don't, click on the gear icon at the top of the Characters box and then choose "Customize List." You can add it from there. Once you do, click on it, and the left/right brackets are in the very first group you see. See screenshot below:

looks like someone has all characters enabled. 😎

Fufufighter wrote:

It is 「 」

I copied from other document.

If you really want to use these corner brackets that normally belong with Chinese/Japanese/Korean text, you need to use something different than the answers provided in the earlier posts, namely U+300C/D.

Fufufighter wrote:

Tom, Thank you very much.

I am able to add those to my favorite.

Let me ask more question...

How do I easily type those brackets? If not Copy and Paste them?

Well, whether you go my route or his, you just double-click on them and they'll be added to your post, your Tweet, your document.....whatever the situation may be. I don't believe either of them have a keyboard combination that will allow you to type them manually, like Shift + Option + K will give you the Apple symbol --> 

Fufufighter wrote:

How do I easily type those brackets? If not Copy and Paste them?

Normally you would be using a Japanese or Chinese input method when those brackets are typed. Do you want instructions on how to do that?

Otherwise you could make shortcuts for them in the substitution grid seen in system preferences/keyboard/text

Fufufighter wrote:

I often add Japanese word

How are you doing that? With Apple's Kotoeri Hiragana IM? Or some other way?

Aside from the replacement system of system prefs/keyboard/text which I mentioned earlier, you could switch to the Hiragana input keyboard, set to Kana Typing, and type shift = for 「 and shift [ for 」