1. Visas and Permits:
Intracompany Transferee: Activities on the part of personnel who are transferred to business offices in Japan for a limited period of time from business offices that are established in foreign countries by public or private organizations with head offices, branch offices, or other business offices in Japan and who engage at these business offices in the activities described in the "Engineer" or "Specialist in Humanities/International Services" sections of this table. Applicants must fulfill certain conditions concerning personal history and work status.
http://www.us.emb-japan.go.jp/english/html/travel_and_visa/visa/faq.htm#q5
2. Relocation allowance and housing:
Education: 24,650 x 3 kids according to http://aoprals.state.gov
Housing: 88,000
3. Language and Cultural training:
Rosetta Stone
Available and affordable – cultural training courses
4. Spousal employment concerns:
http://community.asij.ac.jp/NetCommunity/Page.aspx?pid=200&srcid=-2
5. Health/Medical/Insurance issues:
Emergency Medical Expenses benefit: $50,000, $100,000, $250,000 or $500,000
Deductibles: $100 or $250
$100,000 Emergency Medical Evacuation benefit
$20,000 Repatriation of Mortal Remains benefit
$25,000 Accidental Death and Dismemberment benefit
Physicians' fees and hospital expenses
Special trip expenses for accompanying travelers, 18 years of age and younger, to home residence
Special trip expenses for bringing a companion to your side
Optional Hazardous Sports Rider (not available to residents of Washington state)
MEDEX Worldwide Travel Assistance Services additional detail
6. Compensation and incentives:
Wife receives $6,000 a year pension match, 15% a year salary bonus or approx. $28,000
7. Education for the children:
Included in #2