8-K

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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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                                    FORM 8-K

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                                 CURRENT REPORT

                         PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

        DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): December 16, 2009

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                        RESEARCH FRONTIERS INCORPORATED
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

          DELAWARE                      1-9399               11-2103466
(STATE OR OTHER JURISDICTION    (COMMISSION FILE NUMBER)   (IRS EMPLOYER
     OF INCORPORATION)                                      IDENTIFICATION NO.)

                            240 CROSSWAYS PARK DRIVE
                          WOODBURY, NEW YORK 11797-2033
              (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES AND ZIP CODE)

       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (516) 364-1902

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of
the following provisions (see General Instruction A.2. below):

[ ] Written communications pursuant to Rule 425 under the Securities Act
 (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
(17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))

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Item 7.01 Regulation FD Disclosure

Research Frontiers'licensee Hitachi Chemical Company, Ltd. issued a
press release on BusinessWire today (December 16, 2009) which
announced details about its new production facility and the expansion of
its production capacity for roll-coated, wide-width suspended particle
device (SPD) light-control film. Hitachi Chemical is now supplying
commercially usable film to end-product licensees of Research Frontiers
for the automotive, architectural, marine and aircraft markets. With
its newly completed coating line dedicated to production of SPD film,
Hitachi Chemical reports that it has expanded its production capacity
of SPD film to 400,000 square meters (4.3 million square feet) per year.

SPD-Smart(TM) products use patented SPD film technology developed by
Research Frontiers. With the touch of a button or turn of a dial, users
can instantly and precisely adjust the tint of windows, sunroofs, glass
roof systems, skylights and other products. Automated adjustment of
SPD-Smart products also is available using sensors or timing devices.
SPD films can be combined with other glazing materials, such as those
used in armored glass, to meet a wide range of end-product requirements
across many applications. Because they instantly and precisely control
incoming light and heat, SPD-Smart products offer energy saving benefits
because they can manage solar heat build-up and lower energy used for
artificial lighting.

In its press release, Hitachi Chemical highlighted the growing demand
for smart glass and several of the advantages offered by SPD film
technology when compared to other switchable materials such as liquid
crystals and electrochromics. Customers for Hitachi Chemical's SPD film
are end-product licensees of Research Frontiers around the world. These
companies receive the film, laminate it into glass or plastic, and then
fabricate end-products sold into various industries. End-product licensees
pay Research Frontiers a royalty on the sale of these end-products that
typically ranges from 10-15%.

Hitachi Chemical reports in its press release that it plans to "accelerate
the use of SPD film, which holds significant potential for growth" and
notes that "SPD film is positioned as one of the key emerging products
promoted by Hitachi Chemical to become a future leading product for
the company."

Hitachi Chemical gave a presentation to analysts dated October 30, 2009
on the company's performance during the first half of the year and
highlighted management issues for the second half. In that
presentation, Hitachi Chemical noted that it is projecting SPD film sales
of 5 billion yen ($53.4 million) in 2012.


Hitachi Chemical's press release about the foregoing dated
December 16, 2009 is incorporated herein by reference and filed as
Exhibit 99.1 hereto. A copy of this press release is available on
the Company's website at http://www.SmartGlass.com and is also
expected to be available on the Hitachi Chemical Co., Ltd. website
at http://www.hitachi-chem.co.jp.

The Hitachi Chemical presentation is also available on the
Hitachi Chemical Company's website at:

http://www.hitachi-chem.co.jp//english/ir/accounts/2009_2q/2009_2q_tn.pdf


This report, and Hitachi Chemical's press release and the presentation
referred to herein may include statements that may constitute
"forward-looking" statements as referenced in the Private
Securities Litigation Reform Act of 1995. Those statements
usually contain words such as "believe", "estimate", "project", "intend",
"expect", or similar expressions. Any forward-looking statements are
made by the Company in good faith, pursuant to the safe-harbor
provisions of the Act. These forward-looking statements reflect
management's current views and projections regarding economic
conditions, industry environments and Company performance. Factors,
which could significantly change results, include but are not
limited to: sales performance, expense levels, competitive activity,
interest rates, changes in the Company's financial condition and
several business factors. Additional information regarding these
and other factors may be included in the Company's quarterly 10-Q
and 10-K filings and other public documents, copies of which are
available from the Company on request. By making these
forward-looking statements, the Company undertakes no obligation
to update these statements for revisions or changes after the
date of this report.


The information in this Form 8-K, and Hitachi Chemical's press
release and the presentation referred to herein shall not be
deemed "filed" for purposes of Section 18 of the Securities
Exchange Act of  1934, nor shall they be deemed incorporated
by reference in any filing under the  Securities Act of 1933,
except as shall be expressly set forth by specific reference
in such filing.


Item 9.01. Financial Statements and Exhibits.

(c)  Exhibits.

99.1 Hitachi Chemical Company Press Release dated December 16, 2009


                                   SIGNATURES

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                          RESEARCH FRONTIERS INCORPORATED



                                          /s/ Joseph M. Harary
                                          ---------------------------
                                          By: Joseph M. Harary
                                          Title: President

Dated: December 16, 2009

EX-99

Hitachi Chemical Commences Mass Production of "SPD Film"
Whose Light Transmittance is Controlled by Adjusting AC Voltage

- -Diverse global applications expected for automobiles,
 aircraft, buildings, etc.
(Original News Release in Japanese Dated July 21st, 2009, TOKYO JAPAN)

CUPERTINO (December 16,2009) - Hitachi Chemical Co., Ltd. (Head Office:
Tokyo; President and CEO: Kazuyuki Tanaka; Paid-in Capital: 15.5 billion
yen, hereinafter "Hitachi Chemical") introduced the SPD (Suspended
Particle Device) light-control film technology from New York based
Research Frontiers Inc. (Nasdaq: REFR), and commercialized a roll-coated,
wide-width SPD film whose light transmittance can be freely controlled by
simply adjusting AC voltage.  The film achieves this by utilizing its
proprietary technologies including resin synthesis technology, film
coating technology, and size control technology for adjusting the size
of light-control particles based on nanotechnology. Hitachi Chemical
began mass production of SPD film in July 2009 and is supplying
commercially usable film to end-product licensees of Research Frontiers
for the automotive, architectural, marine and aircraft markets. With its
newly completed coating line dedicated to production of SPD film, Hitachi
Chemical has expanded its production capacity of SPD film to 400,000m2/year.

In recent years, the market for light-control glass has expanded due to
the increasing demands for energy efficiency and heat and light control,
automated shading, privacy, and design and engineering innovation. SPD film
is laminated between panes of glass or plastic to produce various dynamic
light-control products including windows, doors, skylights, atria and
sunroofs. As a durable laminate, it is available in many sizes, fabrications
and shapes, and can be used on curved surfaces. Other light-control
technologies include liquid crystal and electrochromic devices. However,
with liquid crystal technology, it is difficult to tune the level between
white and transparent, and typically little shading benefit is offered.
Electrochromic devices have problems of relatively slow and inconsistent
response speed, difficulty in achieving larger sizes, and limitations to
the substrates that it can be used with, and restrictions on the number
of available light-control states. For these reasons and others, there
is growing demand for "smart" products that can be made in a large size
and can enable freedom in quickly controlling light transmittance.

Therefore, Hitachi Chemical has developed the volume production method
for SPD film based on its own unique polymer synthesis technologies and
resin technologies, which adjusts the size of light-control particles
base on nanotechnologies. It has succeeded in commercializing its SPD film
to the world market. The SPD film consists of two polyethylene
terephthalate (PET) films coated with a transparent conductive layer,
and matrix resin dispersed with microcapsules containing orientative
particles sandwiched between two films. The principle of light control
is that when alternate voltage is applied to the orientative particles,
they become oriented and transparent. When the AC voltage is not applied,
the particles are not oriented so that their color is dark blue, thus
shielding light. The color tone can be changed from dark blue to
transparent to freely control the light transmittance. Its power
consumption is as low as 1.1 W/m2.

A wide range of applications of SPD film are expected, including the
application to buildings such as Indiana University in the USA (refer
to Reference, an example of application of "SPD film"), and windows
of boats and aircrafts, which have been already realized. Future
potential applications include automotives, home electric
appliances, and partitions.)

Hitachi Chemical will strive to accelerate the use of SPD film, which
holds significant potential for growth. SPD film is positioned as one
of the key emerging products promoted by Hitachi Chemical to become
a future leading product for the company.

<>
Example of application of "SPD film": Indiana University of USA
(Research Frontiers licensee Innovative Glass Corporation (USA) produced
68 light-control exterior and interior windows and partitions.)
[Image of Project Omitted from Electronically Filed Version of Press
Release]