The chronological of Sokkisha technology
i1920`1991j
Year
Month
Memory
1845
1846
1871
1882
1889
1901
1917
* Gurley Co. established in USA.
* Carl Zeiss Co. established in Germany.
* Karl Bamberg Co. established in Germany.
* Lietz Co. established in San Fransisco.
* Koffel & Esser(K&E) Co. established in USA.
* Tamaya Co. established in Japan.
* Nippon Kogaku (Nikon) established in Japan.
8
which divorced from Tamaya co.
The first production is shown on the right photo Y Level.
4
* Wild Co. established at April in Switzland.
12
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Succeeded a new glass circle development and
invented both reading optical system to delete an eccentric error.
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* Wild produced theodolites of T2 , T3 and Levels of N1,N2, N3 continuously.
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The current company may be TI Asahi co.
12
until the end of the war(1945) Was renamed Sokkisha Co. LTD
9
Restart to product surveying instruments.
The National observation center of the earth Magnet started.
After that produce some kinds of magnetometer.
The Tellurometer of a radio wave distance meter appeared in South Africa.
6
Developed NO10 using a glass circle.
Nikon introduced a tilting level E5.@@@@@
Rocket K-8-10 by the Institute of Industrial Science ,The Tokyo University.
Succeeded to measure the aspect of a rokect.
11
12
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Released an auto level B2 and a tilting level TTL5.
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Undertook an EDM (type of ERI) for long distance.
Built the new factory in Matsuda town.
And expanded it at 1963, 66, 68, 69, 72, 86, 89, 90.
E Succeeded and released many kinds of Special purpose instruments
yMagnetometeriFluxgate type , Astatic typejASonic speed meter ,
seismic speed meter Clinometer (type M3, with bearing sensor , for landslide ),
Water level meter , Plumb line z
11
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Developed 20 second theodolite TM20 for low price.
Succeeded ERI 2nd version.@@@@@@@@@@@@@@@@@@@@
11
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Developed an precision auto level B1.
Start to develop an EDM for short distance measurement.
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12
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Developed a stereo plotting machine ST-65
Released TM20C.
Delivered the refined ERI to Kyoto University.
Hewlett-Packard Co. released EDM 3800A or B.
4
9
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Announced 5 sec. reading theodolite TM5A.
Released 1 minute reading theodolite T60D.
Started to develop SDM3 which combined EDM+Theodolite with same axis.
7
11
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Release the new developed EDM, SDM3
Opened Sokkisha fare at the world trade center.
Introduced new developed instruments.
Developed Electronic Tacheometer SDT1
Released the true north measuring machine GP1.
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8
9
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Developed 1 second reading theodolite TM1
Released SDM1 for very short distance meter.
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Developed the portable proton magnetometer PPM-739A
8
9
10
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Refined the EDM+theodolite as SDM3C
Released TTL6
@Moved the technical and all production departments to Matsuda factory.
Developed SDM2 for long distance measurement.
2
4
5
6
8
9
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Released a 20 sec. scale reading theodolite TS20.
Released SDM1A.
Developed Laser thoedolite LTS20.
Developed EDM+Alidat ADM1
Released SDM1B.
Released SMD10A
@Payloaded the aspect meter ASM in the satellite gKIKUhby NASDA.
Developed the photogrametric theodolite MK150,MK65.
2
8
9
@Payloaded the aspect meter ASM in the satellite UMEhby NASDA.
Released SDM2A.
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HP released the totalstaion Bear and WILD released also DI3S.
4
10
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Released RED1.@@@@@@
Released TM6,TM20E which are a direct readingtheodolite.
Released TTL6A.
Topcon introduced EDM_DM-C1.
6
7
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Released the new auto level B2C
Released TM6,TM20E which are a direct readingtheodolite.
Released SDM500.
Topcon released GTS1(guppy) .
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4
6
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9
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11
12
Released a precise Level PL1.
Developed 1 second electronic absolute reading theodolite EDT10.
And announced it in Sokkisha 60 yeas fare.
Delivered the system to measure a position of a construction ship SAD3
Released SDM3D which is combined completely a EDM+Theodolite.
And released SDM5A.
Released the Laser theodolite SLT20.
Released TM10E which is a direct reading 10 second theodolite.
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7
8
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10
11
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12
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Built up the smart chamber to do a environmental test.
Released TS6 and TS20A which are scale reading theo.
Delivered the measurement system of the radio wave big telescope to Tokyo
University Astronomical Center.
Built up the parts center.
Released TM20H of a direct reading 20 second theodolite.
Made up the collaboration to Carl Zeiss West with surveying instruments.
Topcon released refined guppy GTS2.
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3
6
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8
11
Released ultra small size and light EDM Redmini.
Developed and released the new combined EDM SDM3E.
Opened the new Matida factory.
Released RED3 with reduction function
Developed the automatic plotter SP1200 and Sp 700.
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5
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6
8
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10
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11
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Released the new clinometer SI10 for a shield construction
It was succeeded to measure 4.4km on sea to display on TV show.
Developed Electronic transit DT20.
Succeeded 5sec. analog TS. MTS5
Succeeded 1 sec. displayed electronic transit EDT1 with an absolute ecorder.
Released DT20E/S .
Developed the field data corrector SDR1.
Released ELTA4 and ELTA2 which are called as an electronic tacheometer,
made by Carl Zeiss.
Developed the first totalstaion SET10.
Developed the smallest EDM alidade ADM2 using Redmini.
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6
7
8
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10
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Succeeded the new NI2 developed with Carl Zeiss
Developed the rotating laser planer LP1.
Released RED2L for long distance measurement( max 7km with 9 prisms)
Released RED2A with LCD display.
Released magnescale instruments
Acuired the Lietz Co.
Developed new analog totalstation SDM3F
Released super small EDM REDmini2.
Developed new complete totalstation SET3.
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3
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6
7
8
9
10
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Developed analog-TS;SDM3FR which a reduction sensor is built in.
Developed TS;SET2 which an electronic compensator is built in.
Developed the new rotating laser LP3A.
Released the small auto level C40.
Withdrawed from the space project.
Established and opened the Atsugi factory.
Had the 2nd class theo. certification for TS;SET3
Released TS;SET2 that has a tilt sensor ,both reading and zero index.
Released TS;SET3A theat as a tilt sensor , bothreading and zero index.
Given the good design prize for SET2 and JG4030 etc. by the ministry
of trade and industly
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9
10
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11
12
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Developed an L type REDmini2.
Opened 6th building for polishing and painting in Matsuda factory.
Released TS;SET4.
Released DT2
Developed 10 sec. reading elec, theo. DT5.
WILD and LEITZ collaborated , and established WILD-LEITZ.
Carl Zeiss released new TS Elta3 and Elta4.
11
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Had 1st class theo certification for SET2EX and released it.
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Topcon released 0.5 sec. reading elec.TS; ET2.
4
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9
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Released new prism series APs.
Developed the rotary stepperACP3 and worked it at October.
Released new elec. theo. DT4 that has a tilt sensor and
switchable 5/10 sec.
12
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Released new SET series which a memory card set in,
SET2C/SET3C/SET4C etc.
WILD-LEITZ took over Kern Co.
4
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5
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10
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Released 20/10sec. angle reading TS;SET5.
Released the improved electric alidade; mini AR2.
Developed the improved NET2 as 3D station.
Released 3D measurement system MONMOS as based NET2.
Released SET-nB series without a memory card. n=2,3,4
WILD-LEUTZ group collaborated with a Cambridge Instruments and
established Leica group.
Leica geosystems Co. released an electronic automatic reading Level NA2000.
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3
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4
6
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10
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firstly.
Developed the elec. theo. with laser ; LDT5.
Released TS;SET5A that has twin tilt sensors.
Developed the Field Master which is a software for a
civil engineering
Released SET6
West and East Germany were unfied.
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