Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Pentax

Pentax Corporation (ペンタックス株式会社, Pentakkusu Kabushiki gaisha) was a Japanese camera and optical equipment manufacturer. Currently, it exists as Pentax Medical, a division of Hoya's medical endoscope business, as well as the digital and film camera brand of Ricoh Imaging Company, a subsidiary of Ricoh, and TI Asahi Co, Ltd., a manufacturer of surveying…

History, Companies & Products

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Pentax. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Corporate history

ToshimaTokyoSpectacle lensesKonicaMinolta
22 related topics

Corporate cooperation and competition

SamsungPentax *ist DS*istDL2Samsung GX-1SGX-1L
17 related topics

Products

Pentax 6x7Pentax 67
2 related topics

Overview

Kabushiki gaishaHoyaEndoscopeRicohAsahiflex
6 related topics

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Founded
November 1919; 106 years ago (1919-11) Tokyo, Japan
Industry
Imaging
Headquarters
Maenochō, Itabashi, Tokyo, Japan
Area served
Worldwide
Fate
Merged into Hoya; digital camera business spun off to Ricoh
Formerly
Asahi Kagaku Kogyo Gōshi gaisha (1919–1938) · Asahi Optical Co., Ltd. Kabushiki gaisha (1938–2002)

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Corporate history

Products

Corporate cooperation and competition

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Pentax

Nodes52
Edges51
Triples173
Avg. degree1.96
Density0.038462
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Pentax

Top relations

related to Corporate cooperation and competition · 27
Pentax → Canon, D-Xenogon, DS, DSLR, Fujifilm, GX-1L, GX-20, However, Hoya, In, K20D, Kyocera, Nikon, Olympus, Panasonic, Pentax Corporation, Pentax K10D, Pentax’s, Samsung, Samsung DSLRs
related to Early 1950s to 2007 · 24
Pentax → Asahi Optical, Asahi Pentax, Asahiflex, Canon, Contax, East German VEB Zeiss, Equipment, Far East, Heiland Pentax, Honeywell Corporation, Honeywell Pentax, Ikon, In, It, Japanese, Japanese SLR, Leica, Nikon, Pentaprism, Pentax Corporation
related to Merger with Hoya · 24
Pentax → April, Cebu, Fumio Urano, Hanoi, However, Hoya, Hoya Corporation, Hoya Pentax HD Corporation, Hoya's, In December, It, March, May, October, On August, On October, Pentax's, Pentax-owned, Philippines, Sparx Asset Management
related to Asia · 12
Pentax → Co, CorporationPentax Hong Kong Ltd, Ltd, Pentax Cebu Philippines CorporationPentax, Pentax Fukushima Co, Pentax Industrial Instruments Co, Pentax Optotech Co, Pentax Service, Pentax Tohoku Co, Pentax Trading, Shanghai, VN Co
related to References · 12
Pentax → Asahi Pentax, Cameras, Cecchi, Danilo, Hove Photo Books, ISBN, JCII Camera Museum, Nihon, Pentax SLR, Sussex, The Japanese Historical Camera, Tokyo
related to External links · 11
Pentax → Hoya, Hoya Vision Care, Pentax Canada, Pentax Medical Company, Pentax Optical, Pentax Ricoh Imaging Company, Pentax Surveying Instruments, Ricoh, Ricoh Imaging, TI Asahi, Wayback Machine
related to Ricoh Imaging Company · 11
Pentax → Hoya, Ltd, Nikkei, On August, On July, On October, Pentax Imaging Corp, Pentax Imaging Corporation, Pentax Ricoh Imaging Company, Ricoh, Ricoh Imaging Company Ltd
related to North America · 9
Pentax → America Inc, CompanyMicroline Pentax Inc, Honeywell Pentax, KayPentax, Pentax Canada Inc, Pentax Imaging Company, Pentax Medical Company, Pentax Medical CompanyPentax Imaging, Pentax Teknologies
related to Products · 7
Pentax → Asahi Optical Co, Asahi Optical Co Ltd, Asahi Pentax, In, Ltd, Pentax Corporation, The
related to Europe · 6
Pentax → ABPentax Nederland, Ltd, Pentax Europe, Pentax Europe GmbHPentax, Pentax France, Pentax Schweiz AGPentax Scandinavia

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

asahi company camera ltd co ricoh optical imaging hoya corporation cameras business lenses digital film name medical equipment tokyo 2007

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
PentaxArea servedWorldwide1.00infobox
PentaxFateMerged into Hoya; digital camera business spun off to Ricoh1.00infobox
PentaxFormerlyAsahi Kagaku Kogyo Gōshi gaisha (1919–1938)1.00infobox
PentaxFormerlyAsahi Optical Co., Ltd. Kabushiki gaisha (1938–2002)1.00infobox
PentaxFoundedNovember 1919; 106 years ago (1919-11) Tokyo, Japan1.00infobox
PentaxHeadquartersMaenochō, Itabashi, Tokyo, Japan1.00infobox
PentaxIndustryImaging1.00infobox
PentaxNative nameペンタックス株式会社1.00infobox
PentaxNet incomeJP¥3.57 billion1.00infobox
PentaxNumber of employees1,661 (as of March 31, 2005; non-consolidated Pentax Corp. only)1.00infobox
PentaxProductsCameras and photographic equipment; binoculars, spotting scopes and telescopes; medical fiberscopes and endoscopes; medical fine ceramics products; information and communication…1.00infobox
PentaxRevenueJP¥157.3 billion (Business year ending March 31, 2007)1.00infobox
PentaxRomanized namePentakkusu Kabushiki gaisha1.00infobox
PentaxSuccessorPentax Life Care Business Division (now Pentax Medical) of Hoya (medical endoscope business)1.00infobox
PentaxSuccessorRicoh Imaging Company (digital camera business)1.00infobox
PentaxSuccessorTI Asahi Co, Ltd. (surveying business)1.00infobox
PentaxTypePublic TYO: 7750 (1970–2007); Subsidiary of Hoya Corporation (2007–2008)1.00infobox
PentaxWebsitePentax1.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.