The country's Financial Services Agency (FSA) said Nomura must give it reports on the steps it is taking.
Chi-X Global, a subsidiary of Instinet, recently received a proprietary trading system license from the Japan Financial Services Agency.
Mr Takenaka has only been in charge of the Financial Services Agency, which regulates Japan's banks, for a few weeks.
As the Financial Services Agency investigates the industry, however, it has become clear that this is not just limited to Nomura.
Today, the Financial Services Agency, commonly called the FSA, sets the rules.
Japan's Financial Services Agency said in May the bad loan ratio at the country's 11 biggest banks had fallen from 5.18% a year ago to just 2.93% today.
Underlining the gravity of the case, Financial Services Minister Shozaburo Jimi said at a news conference in the capital that the regulator, the Financial Services Agency, will now scrutinize operations at all 263 investment-management firms in Japan because of the AIJ investigation.
To many bankers, particularly foreigners who have been keeping an eye out for opportunities in Japan, the government's inclination to obstruct reform has been sharply illustrated by last week's order by the Financial Services Agency, a regulator, to Shinsei, a bank now owned by foreign investors, to increase lending to small and medium-sized companies.
The other organisations are the UK Atomic Energy Constabulary, the Scottish Drugs Enforcement Agency, the Maritime and Coastguard Agency, Financial Services Authority, Office of the Police Ombudsman for Northern Ireland and the Radiocommunications Agency.
After a day of talks, Democratic Congressman Barney Frank - who chairs the Financial Services Committee - told the Associated Press news agency that "a great deal of progress" had been made.
As an alternative to transferring ultimate responsibility onto a regulatory agency or watchdog group, investors and the financial services industry alike need to develop more programs to work together instead of separate.
The Dodd-Frank regulations require the CFPB to create a way for banking customers to report their problems with financial products and services, and send them to the appropriate state or federal agency.
In his prepared testimony before the House Financial Services Committee, Geithner argued that the need for a "dedicated, consolidated consumer protection agency" is clear because the old system failed to save consumers from feeling the brunt of the economic crisis.
The Obama administration has unleashed a massive new regulatory push, with costly new health care regulations, a major expansion by the Environmental Protection Agency that will raise the costs of energy, and a slew of yet unwritten financial services regulations mandated by the Dodd-Frank reform bill.
Tuesday's announcement from Caterpillar comes a week after credit rating agency Moody's Investors Service raised outlook for Caterpillar and its financing arm, Caterpillar Financial Services.
To its credit, Singapore's government investment agency has deep pockets and experience of telecoms and technology, which along with transport and financial services is one of its main areas of expansion.
"It's become a tale of two cities, a gigantic agency for the stars and separation of services for the rest, " says Michael Finer, a financial adviser with Major League Investments in Salem, Mass.
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