Asain Pear.
Three possibilities as I can see by the lintels (dots). Best to get a picture of it when ripe, if it isn't yet, and compare it to pictures on the web.
1. Yoinashi - New variety.
Season: Mid
Size: Large to medium
Color: Golden-brown-buff. Off-white flesh.
Taste: Good flavor. Tender, crisp, juicy.
Storage: Good. Up to 3 months.
Pests/Disease: Trees appear to resist bacterial canker but are very susceptible to fire blight.
2. Shinseiki
Cross of Nijisseki ("20th Century") x Chojuro ("Plentiful"). Japanese selection introduced in 1945.
Season: Early
Size: Medium
Shape: Globular, lop-sided
Color: Green to yellow-green to bright yellow, smooth. White flesh.
Taste: Sweet, slightly tart, firm to rock hard, crunchy, course, juicy
Storage: Excellent, 3-5 months
Fertility: Self-Fertile, but more productive with another pollenizer
Pests/Disease: Fire blight susceptible, but some have moderate resistance
Notes: Fruit hangs on the tree well.
3. Ichiban Nashi
Season: Early. Ripening ahead of 'Shinseiki', 'Shinsui', and 'Kosui.'
Size: Large
Color: Light gold to brown. Russet.
Taste: Sweet
Storage: keeps poorly
Unless its a seedling!