Question: Where did a recipient of The Technical Grammy Award help develop the video tape recorder at?

Context paragraphs:
Video tape tracking: In a video tape recorder, tracking is a calibration adjustment which ensures that the spinning playback head is properly aligned with the helical scan signal written onto the tape.

Kozo Ohsone: Kozo Ohsone (大曽根 幸三 , 1933-11-10) is the Japanese manager for Sony who was credited as one of the main developers of the Walkman.  While general manager of the Tape Recorder Business Division he was asked to help develop a portable audio player.  Ohsone and his staff modified the existing Pressman device to create the Walkman, which was released in Japan in 1979.

Technical Grammy Award: The Technical Grammy Award is a Grammy Special Merit Award presented to individuals and/or companies who have made contributions of outstanding technical significance to the recording field.  The award was first presented in 1994 to Dr. Thomas G. Stockham Jr. Others who have received this award include Ray Dolby, Ikutaro Kakehashi, Rupert Neve, Les Paul, Phil Ramone, Dr. Robert Moog, Geoff Emerick, Tom Dowd, Leo Fender and Thomas Alva Edison.  Companies honored include Sony/Philips, Digidesign, Apple Computer, Shure Incorporated and JBL Professional.

D6 HDTV VTR: D6 HDTV VTR is SMPTE videocassette standard.  A D6 VTR can record and playback HDTV video uncompressed.  The only D6 VTR product is the Philips, now Thomson's Grass Valley's Media Recorder, model DCR 6024, also called the D6 Voodoo VTR.  The VTR was a joint project between Philips Digital Video Systems of Germany and Toshiba in Japan.  The tape deck module was designed and made by Philips in Weiterstadt, Germany (formerly Bosch Fernseh), and the digital processor module designed and made by Toshiba.  Since there is no data compression, after 20 tape copies of multi generations there is no noticeable loss of quality.  As a very high-end, costly system about 70 were sold to high-end post houses from about 2000 to 2005.  The VTR had a data record option.  The data module could record and play back 2k DPX files at 6 frames per second over a HIPPI connection.  The VTR came in a data only model, or with a switch module, so the record deck could be used for both video and data recording.  The tape deck was also sold stand alone as a giga bit recorder to record and playback raw data.  Toshiba made the video tape for the VTR.  The high price of the video tape limited the use of the VTR.

Type C videotape: 1 inch Type C (designated Type C by SMPTE) is a professional reel-to-reel analog recording helical scan videotape format co-developed and introduced by Ampex and Sony in 1976.  It became the replacement in the professional video and broadcast television industries for the then-incumbent 2 inch quadruplex videotape (2 inch Quad for short) open-reel format, due to the smaller size, comparative ease of operation (vs. 2 inch) and slightly higher video quality of 1 inch type C video tape recorder (VTR).  1 inch type C required less maintenance downtime than quadruplex videotape, and did not require time base correction to produce a stable video signal.

Ray Dolby: Ray Milton Dolby {'1': ", '2': ", '3': ", '4': "} ( ; January 18, 1933 – September 12, 2013) was an American engineer and inventor of the noise reduction system known as Dolby NR.  He helped develop the video tape recorder while at Ampex and was the founder of Dolby Laboratories.

Cassette deck: A cassette deck is a type of tape machine for playing and recording audio compact cassettes. Consumer electronics formerly used the term "deck" to distinguish them from a "tape recorder", the "deck" being part of a stereo component system, while a "tape recorder" was more portable and usually had a self-contained power amplifier (and often speakers).

Magnetophon: Magnetophon was the brand or model name of the pioneering reel-to-reel tape recorder developed by engineers of the German electronics company AEG in the 1930s, based on the magnetic tape invention by Fritz Pfleumer.  AEG created the world's first practical tape recorder, the K1, first demonstrated in Germany in 1935 at the Berlin Radio Show.

Video tape recorder: A video tape recorder (VTR) is a tape recorder designed to record and playback video and audio material on magnetic tape.  The early VTRs were reel to reel devices which recorded on individual reels of 2 inch (5.08 cm) wide magnetic tape.  They were used in television studios, serving as a replacement for motion picture film stock and making recording for television applications cheaper and quicker.  Beginning in 1963, videotape machines made instant replay during televised sporting events possible.  Improved formats, in which the tape was contained inside a videocassette, were introduced around 1969; the machines which play them are called videocassette recorders. Agreement by Japanese manufacturers on a common standard recording format, so cassettes recorded on one manufacturer's machine would play on another's, made a consumer market possible, and the first consumer videocassette recorder was introduced by Sony in 1971.

Linear video editing: Linear video editing is a video editing post-production process of selecting, arranging and modifying images and sound in a predetermined, ordered sequence.  Regardless of whether it was captured by a video camera, tapeless camcorder, or recorded in a television studio on a video tape recorder (VTR) the content must be accessed sequentially.  For the most part video editing software has replaced linear editing.

Supporting paragraphs: Technical Grammy Award Ray Dolby
Answer: Ampex