Question: Antique is based on the manga published in Japan by which company?

Context paragraphs:
Color (manga): Color is a Japanese manga anthology written and illustrated by Taishi Zaou and Eiki Eiki.  "Color" was serialized in "Dear+", a magazine known for its romantic and non-explicit boys love manga published by Shinshokan, and a tankōbon collecting the chapters released in February 1999.  "Color" is licensed in North America by Digital Manga Publishing which released the manga in June 2009.  It is licensed in France by Asuka and in Germany by Egmont Manga.

Dengeki Comics: Dengeki Comics (電撃コミックス , Dengeki Komikkusu ) is a manga publishing label affiliated with the Japanese publishing company ASCII Media Works (formerly MediaWorks) and is aimed at a male audience.  Aside from the main Dengeki Comics label, there is the related Dengeki Comics EX label which publishes a lesser number of manga volumes.  A large amount of the manga published under Dengeki Comics was originally serialized in the manga magazine "Dengeki Daioh".

Crunchyroll Manga: Crunchyroll Manga is a digital "shōnen" manga anthology published by Crunchyroll in North America.  It began distribution on October 30, 2013.  The service launched with a lineup of twelve titles, with chapters released simultaneously with their Japanese release.  "Crunchyroll Manga" provides English speaking readers with officially licensed editions of the latest installments of popular manga published by Futabasha, Kodansha, Kadokawa Shoten and Shōnen Gahōsha soon after their release in Japan.

Antique Bakery: Antique Bakery (Japanese: 西洋 骨董 洋菓子店 , Hepburn: Seiyō Kottō Yōgashiten , lit.  "Western Antique Cake-Shop") is a manga by Fumi Yoshinaga depicting the lives of four men who work in a small bakery.  It was published in Japan by Shinshokan and in English by Digital Manga Publishing.  The series won the 2002 Kodansha Manga Award for shōjo manga.  The manga was adapted as a Japanese TV drama, with the title "Antique" or "Antique Cake Store", that was broadcast on Fuji TV in 2001, an anime television series, airing on July 3, 2008 on Noitamina, and a Korean live-action movie.

How to Draw Manga: How to Draw Manga is a series of instructional books on drawing manga published by Graphic-sha, by a variety of authors.  Originally in Japanese for the Japanese market, many volumes have been translated into English and published in the United States.  Of the wide range of manga-how-tos available for westerners, the series is seen as one of the more useful, both for its provenance and wide range of practical tips.  The English-language volumes in the series were co-produced by Graphic-sha and two other Japanese companies, Japanime Co. Ltd. and Japan Publications Trading Co.

Hetappi Manga Kenkyūjo: Hetappi Manga Kenkyūjo (Japanese: 鳥山明のヘタッピマンガ研究所 , lit.  "Akira Toriyama's Lame Manga Laboratories") is a Japanese manga series by Akira Toriyama and Akira Sakuma.  It is a collection of lessons on how to create manga published between October 1982 to March 1984 in "Fresh Jump", and collected into a single "tankōbon" released in May 1985.  A sequel called was written and illustrated by Yusuke Murata from 2008 to 2010 in "Weekly Shōnen Jump".

Monthly Comic Avarus: Monthly Comic Avarus (月刊コミックアヴァルス , Gekkan Komikku Avarusu ) is a Japanese shōjo manga (for girls) magazine published by Mag Garden.  The first issue was released on September 15, 2007, which replaced Comic Blade Masamune a few months after ending publication.  The magazine was formerly titled Monthly Comic Blade Avarus before it was renamed in September 2010.  While new, female-oriented manga works are to be featured in the new magazine, some of the manga published in the shōnen manga (for boys) magazine "Comic Blade Masamune" will also continue serialization in Avarus.

Antique (film): Antique () is a 2008 South Korean comedy film, starring Ju Ji-hoon, Kim Jae-wook, Yoo Ah-in and Choi Ji-ho.  It is based on Fumi Yoshinaga's manga "Antique Bakery".  It was released on 13 November 2008.

List of Honey and Clover characters: This is a list of characters of "Honey and Clover".  These characters were created by Chika Umino in the manga published by Shueisha between from June 2000 to July 2006 and collected in 10 bound volumes.  The series was adapted as an anime television series produced by J.C.Staff, initially broadcast in Japan in two seasons from April to September 2005 and June to September 2006; a live-action movie released in theaters in Japan on July 22, 2006; and two separate live-action television dramas in 2008, one broadcast in Japan from January 8, 2008 to March 18, 2008 and the other broadcast in Taiwan beginning on May 25, 2008.

Keiko Takemiya: Keiko Takemiya (竹宮 惠子 , Takemiya Keiko , born February 13, 1950) is a Japanese manga artist and the current president of Kyoto Seika University.  She is included in the Year 24 Group.  She resides in Kamakura, Kanagawa Prefecture.  The year 24 group was a group of female authors in the early 1970s who helped change shoujo manga from being created by male authors to being created by female authors.  As part of this group, Takemiya pioneered a genre of girls' comics about love between young men; in December 1970 she published a short story, "In the Sunroom", in "Bessatsu Shōjo Komikku", which is possibly the first "shōnen-ai" manga published and contains the earliest known male-male kiss in shōjo manga.

Supporting paragraphs: Antique (film) Antique Bakery
Answer: Shinshokan