If you are transiting from Los Angeles to Tokyo and hold a Chinese passport without a Japanese visa, whether you can apply for a 72-hour transit visa on arrival in Tokyo depends on a number of factors, including but not limited to the following:
Transit Policy: Different countries and regions have different transit policies. You usually need to check Japan’s latest transit policy.
Flight type: If it is a direct flight, the transit time is usually short, and you may not be able to apply for a transit visa on arrival. But if you’re connecting in Los Angeles, there’s usually a longer transit time.
Transit Time: Although a transit visa on arrival in Tokyo usually allows a 72-hour stay, the actual ability to obtain a transit visa depends on whether the transit time is sufficient.
Personal situation: including but not limited to the validity period of the passport, whether there is a valid round-trip air ticket, whether there is sufficient financial ability to pay for the expenses in Japan, etc.
To sum up, even if you hold a Chinese passport, it is theoretically possible to apply for a 72-hour transit visa on arrival in Tokyo without a Japanese visa. However, the specific situation needs to be judged based on the actual situation and the regulations of the Japanese Immigration Bureau. It is recommended to check with the airline or Japanese Embassy/Consulate in advance for the most accurate information.